68274575540 has 24 divisors (see below), whose sum is σ = 145396000512. Its totient is φ = 26925184160.

The previous prime is 68274575533. The next prime is 68274575569. The reversal of 68274575540 is 4557547286.

It is a super-2 number, since 2×68274575540² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24038924 + ... + 24041763.

It is an arithmetic number, because the mean of its divisors is an integer number (6058166688).

Almost surely, 2^68274575540 is an apocalyptic number.

It is an amenable number.

68274575540 is an abundant number, since it is smaller than the sum of its proper divisors (77121424972).

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

68274575540 is a wasteful number, since it uses less digits than its factorization.

68274575540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48080767 (or 48080765 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 53.

The spelling of 68274575540 in words is "sixty-eight billion, two hundred seventy-four million, five hundred seventy-five thousand, five hundred forty".