78574974963 has 4 divisors (see below), whose sum is σ = 104766633288. Its totient is φ = 52383316640.

The previous prime is 78574974953. The next prime is 78574974971. The reversal of 78574974963 is 36947947587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78574974963 - 2³² = 74280007667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78574974913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13095829158 + ... + 13095829163.

It is an arithmetic number, because the mean of its divisors is an integer number (26191658322).

Almost surely, 2^78574974963 is an apocalyptic number.

78574974963 is a deficient number, since it is larger than the sum of its proper divisors (26191658325).

78574974963 is a wasteful number, since it uses less digits than its factorization.

78574974963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191658324.

The product of its digits is 320060160, while the sum is 69.

The spelling of 78574974963 in words is "seventy-eight billion, five hundred seventy-four million, nine hundred seventy-four thousand, nine hundred sixty-three".