537908807232 has 140 divisors (see below), whose sum is σ = 1601150242956. Its totient is φ = 178558525440.

The previous prime is 537908807209. The next prime is 537908807243. The reversal of 537908807232 is 232708809735.

537908807232 is a `hidden beast` number, since 537 + 9 + 0 + 8 + 8 + 0 + 72 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 311203316736 + 226705490496 = 557856^2 + 476136^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1034068 + ... + 1464620.

Almost surely, 2^537908807232 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 537908807232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (800575121478).

537908807232 is an abundant number, since it is smaller than the sum of its proper divisors (1063241435724).

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

537908807232 is a wasteful number, since it uses less digits than its factorization.

537908807232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430818 (or 430799 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 537908807232 in words is "five hundred thirty-seven billion, nine hundred eight million, eight hundred seven thousand, two hundred thirty-two".