54195979293 has 6 divisors (see below), whose sum is σ = 78283081214. Its totient is φ = 36130652856.

The previous prime is 54195979249. The next prime is 54195979309. The reversal of 54195979293 is 39297959145.

54195979293 is a `hidden beast` number, since 5 + 4 + 19 + 597 + 9 + 29 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48423322809 + 5772656484 = 220053^2 + 75978^2 .

It is not a de Polignac number, because 54195979293 - 2¹⁶ = 54195913757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54195979293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54195979213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3010887730 + ... + 3010887747.

Almost surely, 2^54195979293 is an apocalyptic number.

It is an amenable number.

54195979293 is a deficient number, since it is larger than the sum of its proper divisors (24087101921).

54195979293 is a wasteful number, since it uses less digits than its factorization.

54195979293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021775483 (or 6021775480 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 63.

The spelling of 54195979293 in words is "fifty-four billion, one hundred ninety-five million, nine hundred seventy-nine thousand, two hundred ninety-three".