78107553275 has 24 divisors (see below), whose sum is σ = 99243012624. Its totient is φ = 60945177600.

The previous prime is 78107553241. The next prime is 78107553289. The reversal of 78107553275 is 57235570187.

It is not a de Polignac number, because 78107553275 - 2¹⁰ = 78107552251 is a prime.

It is a super-2 number, since 2×78107553275² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4765244 + ... + 4781606.

It is an arithmetic number, because the mean of its divisors is an integer number (4135125526).

Almost surely, 2^78107553275 is an apocalyptic number.

78107553275 is a deficient number, since it is larger than the sum of its proper divisors (21135459349).

78107553275 is a wasteful number, since it uses less digits than its factorization.

78107553275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071 (or 21066 counting only the distinct ones).

The product of its (nonzero) digits is 2058000, while the sum is 50.

The spelling of 78107553275 in words is "seventy-eight billion, one hundred seven million, five hundred fifty-three thousand, two hundred seventy-five".