54621831687020 has 48 divisors (see below), whose sum is σ = 123533967449088. Its totient is φ = 20167310849280.

The previous prime is 54621831686843. The next prime is 54621831687037. The reversal of 54621831687020 is 2078613812645.

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, 3121877 + ... + 10908243.

It is an arithmetic number, because the mean of its divisors is an integer number (2573624321856).

Almost surely, 2^{54621831687020} is an apocalyptic number.

It is an amenable number.

54621831687020 is an abundant number, since it is smaller than the sum of its proper divisors (68912135762068).

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

54621831687020 is a wasteful number, since it uses less digits than its factorization.

54621831687020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7813370 (or 7813368 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 54621831687020 in words is "fifty-four trillion, six hundred twenty-one billion, eight hundred thirty-one million, six hundred eighty-seven thousand, twenty".