68845293945 has 48 divisors (see below), whose sum is σ = 120423910464. Its totient is φ = 36382320000.

The previous prime is 68845293931. The next prime is 68845293971. The reversal of 68845293945 is 54939254886.

68845293945 is a `hidden beast` number, since 6 + 8 + 8 + 452 + 93 + 94 + 5 = 666.

It is not a de Polignac number, because 68845293945 - 2⁴ = 68845293929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4064995 + ... + 4081895.

It is an arithmetic number, because the mean of its divisors is an integer number (2508831468).

Almost surely, 2^68845293945 is an apocalyptic number.

It is an amenable number.

68845293945 is a deficient number, since it is larger than the sum of its proper divisors (51578616519).

68845293945 is a wasteful number, since it uses less digits than its factorization.

68845293945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734 (or 17731 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 63.

The spelling of 68845293945 in words is "sixty-eight billion, eight hundred forty-five million, two hundred ninety-three thousand, nine hundred forty-five".