78410205508 has 12 divisors (see below), whose sum is σ = 141644242432. Its totient is φ = 37940421960.

The previous prime is 78410205479. The next prime is 78410205509. The reversal of 78410205508 is 80550201487.

It is a super-2 number, since 2×78410205508² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78410205509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316170060 + ... + 316170307.

Almost surely, 2^78410205508 is an apocalyptic number.

It is an amenable number.

78410205508 is a deficient number, since it is larger than the sum of its proper divisors (63234036924).

78410205508 is a wasteful number, since it uses less digits than its factorization.

78410205508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632340402 (or 632340400 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The spelling of 78410205508 in words is "seventy-eight billion, four hundred ten million, two hundred five thousand, five hundred eight".