791902406988 has 432 divisors, whose sum is σ = 2711707165440. Its totient is φ = 192112300800.

The previous prime is 791902406941. The next prime is 791902406989. The reversal of 791902406988 is 889604209197.

791902406988 is a `hidden beast` number, since 79 + 190 + 240 + 69 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (791902406989) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 26160870 + ... + 26191122.

It is an arithmetic number, because the mean of its divisors is an integer number (6277099920).

Almost surely, 2^791902406988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791902406988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1355853582720).

791902406988 is an abundant number, since it is smaller than the sum of its proper divisors (1919804758452).

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

791902406988 is a wasteful number, since it uses less digits than its factorization.

791902406988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30378 (or 30366 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 791902406988 in words is "seven hundred ninety-one billion, nine hundred two million, four hundred six thousand, nine hundred eighty-eight".