54291179978 has 16 divisors (see below), whose sum is σ = 97117142400. Its totient is φ = 22256011536.

The previous prime is 54291179977. The next prime is 54291179989. The reversal of 54291179978 is 87997119245.

It is a self number, because there is not a number n which added to its sum of digits gives 54291179978.

It is not an unprimeable number, because it can be changed into a prime (54291179977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84302753 + ... + 84303396.

It is an arithmetic number, because the mean of its divisors is an integer number (6069821400).

Almost surely, 2^54291179978 is an apocalyptic number.

54291179978 is a deficient number, since it is larger than the sum of its proper divisors (42825962422).

54291179978 is a wasteful number, since it uses less digits than its factorization.

54291179978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168606181.

The product of its digits is 11430720, while the sum is 62.

The spelling of 54291179978 in words is "fifty-four billion, two hundred ninety-one million, one hundred seventy-nine thousand, nine hundred seventy-eight".