78931066150 has 24 divisors (see below), whose sum is σ = 147290025960. Its totient is φ = 31469578560.

The previous prime is 78931066133. The next prime is 78931066157. The reversal of 78931066150 is 5166013987.

It is a happy number.

It is a super-2 number, since 2×78931066150² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 78931066150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78931066157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2555695 + ... + 2586394.

It is an arithmetic number, because the mean of its divisors is an integer number (6137084415).

Almost surely, 2^78931066150 is an apocalyptic number.

78931066150 is a deficient number, since it is larger than the sum of its proper divisors (68358959810).

78931066150 is a wasteful number, since it uses less digits than its factorization.

78931066150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142408 (or 5142403 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 78931066150 in words is "seventy-eight billion, nine hundred thirty-one million, sixty-six thousand, one hundred fifty".