78583425615 has 32 divisors (see below), whose sum is σ = 139896207360. Its totient is φ = 41853458592.

The previous prime is 78583425577. The next prime is 78583425643. The reversal of 78583425615 is 51652438587.

78583425615 is a `hidden beast` number, since 7 + 8 + 583 + 4 + 2 + 56 + 1 + 5 = 666.

It is not a de Polignac number, because 78583425615 - 2⁶ = 78583425551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302199 + ... + 498488.

It is an arithmetic number, because the mean of its divisors is an integer number (4371756480).

Almost surely, 2^78583425615 is an apocalyptic number.

78583425615 is a deficient number, since it is larger than the sum of its proper divisors (61312781745).

78583425615 is a wasteful number, since it uses less digits than its factorization.

78583425615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801428 (or 801422 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 78583425615 in words is "seventy-eight billion, five hundred eighty-three million, four hundred twenty-five thousand, six hundred fifteen".