53157703788 has 240 divisors, whose sum is σ = 161806977024. Its totient is φ = 14903792640.

The previous prime is 53157703783. The next prime is 53157703811. The reversal of 53157703788 is 88730775135.

53157703788 is a `hidden beast` number, since 5 + 31 + 577 + 0 + 37 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (53157703783) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 53639973 + ... + 53640963.

Almost surely, 2^53157703788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53157703788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80903488512).

53157703788 is an abundant number, since it is smaller than the sum of its proper divisors (108649273236).

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

53157703788 is a wasteful number, since it uses less digits than its factorization.

53157703788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 53157703788 in words is "fifty-three billion, one hundred fifty-seven million, seven hundred three thousand, seven hundred eighty-eight".