78242512252344 has 48 divisors (see below), whose sum is σ = 215005250618760. Its totient is φ = 23709852196800.

The previous prime is 78242512252249. The next prime is 78242512252349. The reversal of 78242512252344 is 44325221524287.

It is a super-2 number, since 2×78242512252344² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78242512252349) 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, 13471504027 + ... + 13471509834.

Almost surely, 2^{78242512252344} is an apocalyptic number.

It is an amenable number.

78242512252344 is an abundant number, since it is smaller than the sum of its proper divisors (136762738366416).

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

78242512252344 is a wasteful number, since it uses less digits than its factorization.

78242512252344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26943013892 (or 26943013877 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 51.

The spelling of 78242512252344 in words is "seventy-eight trillion, two hundred forty-two billion, five hundred twelve million, two hundred fifty-two thousand, three hundred forty-four".