52516179978 has 16 divisors (see below), whose sum is σ = 106072285536. Its totient is φ = 17332072400.

The previous prime is 52516179967. The next prime is 52516179983. The reversal of 52516179978 is 87997161525.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43329576 + ... + 43330787.

It is an arithmetic number, because the mean of its divisors is an integer number (6629517846).

Almost surely, 2^52516179978 is an apocalyptic number.

52516179978 is an abundant number, since it is smaller than the sum of its proper divisors (53556105558).

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

52516179978 is a wasteful number, since it uses less digits than its factorization.

52516179978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86660469.

The product of its digits is 9525600, while the sum is 60.

The spelling of 52516179978 in words is "fifty-two billion, five hundred sixteen million, one hundred seventy-nine thousand, nine hundred seventy-eight".