78740770032 has 100 divisors (see below), whose sum is σ = 230783725920. Its totient is φ = 25914650112.

The previous prime is 78740769967. The next prime is 78740770033. The reversal of 78740770032 is 23007704787.

It is a self number, because there is not a number n which added to its sum of digits gives 78740770032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78740770033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 282153 + ... + 486920.

Almost surely, 2^78740770032 is an apocalyptic number.

78740770032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78740770032 is an abundant number, since it is smaller than the sum of its proper divisors (152042955888).

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

78740770032 is a wasteful number, since it uses less digits than its factorization.

78740770032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769172 (or 769157 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The spelling of 78740770032 in words is "seventy-eight billion, seven hundred forty million, seven hundred seventy thousand, thirty-two".