54197977064 has 64 divisors (see below), whose sum is σ = 127621560960. Its totient is φ = 20961930240.

The previous prime is 54197977051. The next prime is 54197977123. The reversal of 54197977064 is 46077979145.

It is a junction number, because it is equal to n+sod(n) for n = 54197976994 and 54197977012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236717 + ... + 405500.

It is an arithmetic number, because the mean of its divisors is an integer number (1994086890).

Almost surely, 2^54197977064 is an apocalyptic number.

It is an amenable number.

54197977064 is an abundant number, since it is smaller than the sum of its proper divisors (73423583896).

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

54197977064 is a wasteful number, since it uses less digits than its factorization.

54197977064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642378 (or 642374 counting only the distinct ones).

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 54197977064 in words is "fifty-four billion, one hundred ninety-seven million, nine hundred seventy-seven thousand, sixty-four".