53718737820 has 48 divisors (see below), whose sum is σ = 164086328448. Its totient is φ = 13022724160.

The previous prime is 53718737803. The next prime is 53718737887. The reversal of 53718737820 is 2873781735.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40695354 + ... + 40696673.

It is an arithmetic number, because the mean of its divisors is an integer number (3418465176).

Almost surely, 2^53718737820 is an apocalyptic number.

It is an amenable number.

53718737820 is an abundant number, since it is smaller than the sum of its proper divisors (110367590628).

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

53718737820 is a wasteful number, since it uses less digits than its factorization.

53718737820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81392050 (or 81392048 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 53718737820 in words is "fifty-three billion, seven hundred eighteen million, seven hundred thirty-seven thousand, eight hundred twenty".