87568978245 has 48 divisors (see below), whose sum is σ = 163927877760. Its totient is φ = 39800078976.

The previous prime is 87568978207. The next prime is 87568978247. The reversal of 87568978245 is 54287986578.

It is not a de Polignac number, because 87568978245 - 2⁶ = 87568978181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87568978245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87568978247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217185 + ... + 471494.

It is an arithmetic number, because the mean of its divisors is an integer number (3415164120).

Almost surely, 2^87568978245 is an apocalyptic number.

It is an amenable number.

87568978245 is a deficient number, since it is larger than the sum of its proper divisors (76358899515).

87568978245 is a wasteful number, since it uses less digits than its factorization.

87568978245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688874 (or 688867 counting only the distinct ones).

The product of its digits is 270950400, while the sum is 69.

The spelling of 87568978245 in words is "eighty-seven billion, five hundred sixty-eight million, nine hundred seventy-eight thousand, two hundred forty-five".