54857631382820 has 48 divisors (see below), whose sum is σ = 132936551424768. Its totient is φ = 18625725601920.

The previous prime is 54857631382783. The next prime is 54857631382847. The reversal of 54857631382820 is 2828313675845.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902122591 + ... + 1902151430.

It is an arithmetic number, because the mean of its divisors is an integer number (2769511488016).

Almost surely, 2^{54857631382820} is an apocalyptic number.

It is an amenable number.

54857631382820 is an abundant number, since it is smaller than the sum of its proper divisors (78078920041948).

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

54857631382820 is a wasteful number, since it uses less digits than its factorization.

54857631382820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804274140 (or 3804274138 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 62.

The spelling of 54857631382820 in words is "fifty-four trillion, eight hundred fifty-seven billion, six hundred thirty-one million, three hundred eighty-two thousand, eight hundred twenty".