78093075015 has 96 divisors (see below), whose sum is σ = 145602302976. Its totient is φ = 38578498560.

The previous prime is 78093075007. The next prime is 78093075029. The reversal of 78093075015 is 51057039087.

It is not a de Polignac number, because 78093075015 - 2³ = 78093075007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44700372 + ... + 44702118.

It is an arithmetic number, because the mean of its divisors is an integer number (1516690656).

Almost surely, 2^78093075015 is an apocalyptic number.

78093075015 is a deficient number, since it is larger than the sum of its proper divisors (67509227961).

78093075015 is a wasteful number, since it uses less digits than its factorization.

78093075015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669 (or 2666 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 45.

The spelling of 78093075015 in words is "seventy-eight billion, ninety-three million, seventy-five thousand, fifteen".