78441274560 has 112 divisors (see below), whose sum is σ = 271692087552. Its totient is φ = 19016064000.

The previous prime is 78441274487. The next prime is 78441274567. The reversal of 78441274560 is 6547214487.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (78441274567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3703516 + ... + 3724635.

Almost surely, 2^78441274560 is an apocalyptic number.

It is an amenable number.

78441274560 is an abundant number, since it is smaller than the sum of its proper divisors (193250812992).

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

78441274560 is a wasteful number, since it uses less digits than its factorization.

78441274560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428182 (or 7428172 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 78441274560 in words is "seventy-eight billion, four hundred forty-one million, two hundred seventy-four thousand, five hundred sixty".