78788567706 has 32 divisors (see below), whose sum is σ = 159483212928. Its totient is φ = 25946672640.

The previous prime is 78788567701. The next prime is 78788567719. The reversal of 78788567706 is 60776588787.

It is a super-2 number, since 2×78788567706² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78788567701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24030 + ... + 397686.

It is an arithmetic number, because the mean of its divisors is an integer number (4983850404).

Almost surely, 2^78788567706 is an apocalyptic number.

78788567706 is an abundant number, since it is smaller than the sum of its proper divisors (80694645222).

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

78788567706 is a wasteful number, since it uses less digits than its factorization.

78788567706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374086.

The product of its (nonzero) digits is 221276160, while the sum is 69.

The spelling of 78788567706 in words is "seventy-eight billion, seven hundred eighty-eight million, five hundred sixty-seven thousand, seven hundred six".