78545734116 has 12 divisors (see below), whose sum is σ = 183273379632. Its totient is φ = 26181911368.

The previous prime is 78545734087. The next prime is 78545734177. The reversal of 78545734116 is 61143754587.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272738910 + ... + 3272738933.

It is an arithmetic number, because the mean of its divisors is an integer number (15272781636).

Almost surely, 2^78545734116 is an apocalyptic number.

It is an amenable number.

78545734116 is an abundant number, since it is smaller than the sum of its proper divisors (104727645516).

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

78545734116 is a wasteful number, since it uses less digits than its factorization.

78545734116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545477850 (or 6545477848 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 51.

The spelling of 78545734116 in words is "seventy-eight billion, five hundred forty-five million, seven hundred thirty-four thousand, one hundred sixteen".