78240931214 has 32 divisors (see below), whose sum is σ = 123251466240. Its totient is φ = 37179268192.

The previous prime is 78240931211. The next prime is 78240931253. The reversal of 78240931214 is 41213904287.

It is a super-2 number, since 2×78240931214² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78240931211) 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, 21381317 + ... + 21384975.

It is an arithmetic number, because the mean of its divisors is an integer number (3851608320).

Almost surely, 2^78240931214 is an apocalyptic number.

78240931214 is a deficient number, since it is larger than the sum of its proper divisors (45010535026).

78240931214 is a wasteful number, since it uses less digits than its factorization.

78240931214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6544.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 78240931214 in words is "seventy-eight billion, two hundred forty million, nine hundred thirty-one thousand, two hundred fourteen".