7797699072 has 120 divisors (see below), whose sum is σ = 22539411180. Its totient is φ = 2595225600.

The previous prime is 7797699071. The next prime is 7797699073. The reversal of 7797699072 is 2709967977.

It is an interprime number because it is at equal distance from previous prime (7797699071) and next prime (7797699073).

It can be written as a sum of positive squares in 2 ways, for example, as 4496507136 + 3301191936 = 67056^2 + 57456^2 .

It is a super-2 number, since 2×7797699072² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7797699071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5533504 + ... + 5534912.

Almost surely, 2^7797699072 is an apocalyptic number.

7797699072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7797699072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11269705590).

7797699072 is an abundant number, since it is smaller than the sum of its proper divisors (14741712108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7797699072 is a wasteful number, since it uses less digits than its factorization.

7797699072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 21003948, while the sum is 63.

The square root of 7797699072 is about 88304.5812628088. The cubic root of 7797699072 is about 1982.9974556771.

The spelling of 7797699072 in words is "seven billion, seven hundred ninety-seven million, six hundred ninety-nine thousand, seventy-two".