78465536525475 has 180 divisors, whose sum is σ = 166705793406768. Its totient is φ = 36389811427200.

The previous prime is 78465536525443. The next prime is 78465536525527. The reversal of 78465536525475 is 57452563556487.

It is a happy number.

78465536525475 is a `hidden beast` number, since 7 + 8 + 4 + 6 + 5 + 5 + 365 + 254 + 7 + 5 = 666.

It is not a de Polignac number, because 78465536525475 - 2⁵ = 78465536525443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 1326052 + ... + 12597201.

Almost surely, 2^{78465536525475} is an apocalyptic number.

78465536525475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78465536525475 is an abundant number, since it is smaller than the sum of its proper divisors (88240256881293).

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

78465536525475 is a wasteful number, since it uses less digits than its factorization.

78465536525475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13923320 (or 13923295 counting only the distinct ones).

The product of its digits is 4233600000, while the sum is 72.

The spelling of 78465536525475 in words is "seventy-eight trillion, four hundred sixty-five billion, five hundred thirty-six million, five hundred twenty-five thousand, four hundred seventy-five".