7799001001 has 16 divisors (see below), whose sum is σ = 8815959360. Its totient is φ = 6834179520.

The previous prime is 7799000999. The next prime is 7799001011. The reversal of 7799001001 is 1001009977.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7799001001 - 2¹ = 7799000999 is a prime.

It is a super-2 number, since 2×7799001001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7799001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175606 + ... + 215488.

It is an arithmetic number, because the mean of its divisors is an integer number (550997460).

Almost surely, 2^7799001001 is an apocalyptic number.

It is an amenable number.

7799001001 is a deficient number, since it is larger than the sum of its proper divisors (1016958359).

7799001001 is a wasteful number, since it uses less digits than its factorization.

7799001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40536.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 7799001001 is about 88311.9527640511. The cubic root of 7799001001 is about 1983.1078120870.

The spelling of 7799001001 in words is "seven billion, seven hundred ninety-nine million, one thousand, one".