68737536 has 120 divisors (see below), whose sum is σ = 226827744. Its totient is φ = 19630080.

The previous prime is 68737523. The next prime is 68737541. The reversal of 68737536 is 63573786.

68737536 is a `hidden beast` number, since 6 + 87 + 37 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 68737491 and 68737500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31191 + ... + 33321.

Almost surely, 2^68737536 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 68737536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113413872).

68737536 is an abundant number, since it is smaller than the sum of its proper divisors (158090208).

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

68737536 is a wasteful number, since it uses less digits than its factorization.

68737536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 2143 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 68737536 is about 8290.8103343401. The cubic root of 68737536 is about 409.6358773912.

The spelling of 68737536 in words is "sixty-eight million, seven hundred thirty-seven thousand, five hundred thirty-six".