68253742770 has 32 divisors (see below), whose sum is σ = 163857962880. Its totient is φ = 18195555840.

The previous prime is 68253742763. The next prime is 68253742783. The reversal of 68253742770 is 7724735286.

It is a super-2 number, since 2×68253742770² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237630 + ... + 439289.

It is an arithmetic number, because the mean of its divisors is an integer number (5120561340).

Almost surely, 2^68253742770 is an apocalyptic number.

68253742770 is an abundant number, since it is smaller than the sum of its proper divisors (95604220110).

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

68253742770 is a wasteful number, since it uses less digits than its factorization.

68253742770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680290.

The product of its (nonzero) digits is 3951360, while the sum is 51.

The spelling of 68253742770 in words is "sixty-eight billion, two hundred fifty-three million, seven hundred forty-two thousand, seven hundred seventy".