78731360734 has 48 divisors (see below), whose sum is σ = 131655165264. Its totient is φ = 35101503360.

The previous prime is 78731360693. The next prime is 78731360767. The reversal of 78731360734 is 43706313787.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15413809 + ... + 15418915.

It is an arithmetic number, because the mean of its divisors is an integer number (2742815943).

Almost surely, 2^78731360734 is an apocalyptic number.

78731360734 is a deficient number, since it is larger than the sum of its proper divisors (52923804530).

78731360734 is a wasteful number, since it uses less digits than its factorization.

78731360734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801 (or 5770 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 78731360734 in words is "seventy-eight billion, seven hundred thirty-one million, three hundred sixty thousand, seven hundred thirty-four".