53697471683940 has 180 divisors, whose sum is σ = 190018080871164. Its totient is φ = 12273707714688.

The previous prime is 53697471683771. The next prime is 53697471683959. The reversal of 53697471683940 is 4938617479635.

53697471683940 is a `hidden beast` number, since 5 + 3 + 6 + 9 + 7 + 471 + 68 + 3 + 94 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30267844630884 + 23429627053056 = 5501622^2 + 4840416^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 61691787 + ... + 62556146.

Almost surely, 2^{53697471683940} is an apocalyptic number.

It is an amenable number.

53697471683940 is an abundant number, since it is smaller than the sum of its proper divisors (136320609187224).

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

53697471683940 is a wasteful number, since it uses less digits than its factorization.

53697471683940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124247976 (or 124247950 counting only the distinct ones).

The product of its (nonzero) digits is 823011840, while the sum is 72.

The spelling of 53697471683940 in words is "fifty-three trillion, six hundred ninety-seven billion, four hundred seventy-one million, six hundred eighty-three thousand, nine hundred forty".