791478276768 has 36 divisors (see below), whose sum is σ = 2250766350378. Its totient is φ = 263826092160.

The previous prime is 791478276709. The next prime is 791478276769. The reversal of 791478276768 is 867672874197.

791478276768 is a `hidden beast` number, since 7 + 91 + 478 + 2 + 7 + 6 + 7 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 759846942864 + 31631333904 = 871692^2 + 177852^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 791478276696 and 791478276705.

It is not an unprimeable number, because it can be changed into a prime (791478276769) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1374093943 + ... + 1374094518.

Almost surely, 2^791478276768 is an apocalyptic number.

It is an amenable number.

791478276768 is an abundant number, since it is smaller than the sum of its proper divisors (1459288073610).

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

791478276768 is a wasteful number, since it uses less digits than its factorization.

791478276768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748188477 (or 2748188466 counting only the distinct ones).

The product of its digits is 398297088, while the sum is 72.

The spelling of 791478276768 in words is "seven hundred ninety-one billion, four hundred seventy-eight million, two hundred seventy-six thousand, seven hundred sixty-eight".