78518925963 has 8 divisors (see below), whose sum is σ = 116324334800. Its totient is φ = 52345950624.

The previous prime is 78518925929. The next prime is 78518925977. The reversal of 78518925963 is 36952981587.

78518925963 is a `hidden beast` number, since 7 + 8 + 518 + 9 + 2 + 59 + 63 = 666.

It is not a de Polignac number, because 78518925963 - 2⁸ = 78518925707 is a prime.

It is a super-3 number, since 3×78518925963³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78518925963.

It is not an unprimeable number, because it can be changed into a prime (78518925983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454054158 + ... + 1454054211.

It is an arithmetic number, because the mean of its divisors is an integer number (14540541850).

Almost surely, 2^78518925963 is an apocalyptic number.

78518925963 is a deficient number, since it is larger than the sum of its proper divisors (37805408837).

78518925963 is a wasteful number, since it uses less digits than its factorization.

78518925963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908108378 (or 2908108372 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 78518925963 in words is "seventy-eight billion, five hundred eighteen million, nine hundred twenty-five thousand, nine hundred sixty-three".