53992172478 has 8 divisors (see below), whose sum is σ = 107984344968. Its totient is φ = 17997390824.

The previous prime is 53992172467. The next prime is 53992172483. The reversal of 53992172478 is 87427129935.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

53992172478 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4499347701 + ... + 4499347712.

It is an arithmetic number, because the mean of its divisors is an integer number (13498043121).

Almost surely, 2^53992172478 is an apocalyptic number.

53992172478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53992172478 is a wasteful number, since it uses less digits than its factorization.

53992172478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8998695418.

The product of its digits is 7620480, while the sum is 57.

The spelling of 53992172478 in words is "fifty-three billion, nine hundred ninety-two million, one hundred seventy-two thousand, four hundred seventy-eight".