54579657140 has 12 divisors (see below), whose sum is σ = 114617280036. Its totient is φ = 21831862848.

The previous prime is 54579657023. The next prime is 54579657149. The reversal of 54579657140 is 4175697545.

It can be written as a sum of positive squares in 2 ways, for example, as 43141782436 + 11437874704 = 207706^2 + 106948^2 .

It is a super-4 number, since 4×54579657140⁴ (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54579657149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364491409 + ... + 1364491448.

It is an arithmetic number, because the mean of its divisors is an integer number (9551440003).

Almost surely, 2^54579657140 is an apocalyptic number.

It is an amenable number.

54579657140 is an abundant number, since it is smaller than the sum of its proper divisors (60037622896).

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

54579657140 is a wasteful number, since it uses less digits than its factorization.

54579657140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728982866 (or 2728982864 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 53.

The spelling of 54579657140 in words is "fifty-four billion, five hundred seventy-nine million, six hundred fifty-seven thousand, one hundred forty".