7994557760 has 168 divisors, whose sum is σ = 22860877824. Its totient is φ = 2652410880.

The previous prime is 7994557757. The next prime is 7994557771. The reversal of 7994557760 is 677554997.

It is a self number, because there is not a number n which added to its sum of digits gives 7994557760.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 477857 + ... + 494303.

Almost surely, 2^7994557760 is an apocalyptic number.

7994557760 is a gapful number since it is divisible by the number (70) 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 7994557760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11430438912).

7994557760 is an abundant number, since it is smaller than the sum of its proper divisors (14866320064).

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

7994557760 is a wasteful number, since it uses less digits than its factorization.

7994557760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16509 (or 16492 counting only the distinct ones).

The product of its (nonzero) digits is 16669800, while the sum is 59.

The square root of 7994557760 is about 89412.2908777088. The cubic root of 7994557760 is about 1999.5463771209.

The spelling of 7994557760 in words is "seven billion, nine hundred ninety-four million, five hundred fifty-seven thousand, seven hundred sixty".