78504152007504 has 20 divisors (see below), whose sum is σ = 202802392686176. Its totient is φ = 26168050669152.

The previous prime is 78504152007481. The next prime is 78504152007527. The reversal of 78504152007504 is 40570025140587.

It is an interprime number because it is at equal distance from previous prime (78504152007481) and next prime (78504152007527).

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1635503166823 = 78504152007504 / (7 + 8 + 5 + 0 + 4 + 1 + 5 + 2 + 0 + 0 + 7 + 5 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 817751583364 + ... + 817751583459.

Almost surely, 2^{78504152007504} is an apocalyptic number.

It is an amenable number.

78504152007504 is an abundant number, since it is smaller than the sum of its proper divisors (124298240678672).

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

78504152007504 is a wasteful number, since it uses less digits than its factorization.

78504152007504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635503166834 (or 1635503166828 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 48.

The spelling of 78504152007504 in words is "seventy-eight trillion, five hundred four billion, one hundred fifty-two million, seven thousand, five hundred four".