68047347867 has 16 divisors (see below), whose sum is σ = 91290961920. Its totient is φ = 45084765600.

The previous prime is 68047347827. The next prime is 68047347877. The reversal of 68047347867 is 76874374086.

It is not a de Polignac number, because 68047347867 - 2²⁷ = 67913130139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68047347867.

It is not an unprimeable number, because it can be changed into a prime (68047347827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 556992 + ... + 668082.

It is an arithmetic number, because the mean of its divisors is an integer number (5705685120).

Almost surely, 2^68047347867 is an apocalyptic number.

68047347867 is a deficient number, since it is larger than the sum of its proper divisors (23243614053).

68047347867 is a wasteful number, since it uses less digits than its factorization.

68047347867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112354.

The product of its (nonzero) digits is 37933056, while the sum is 60.

The spelling of 68047347867 in words is "sixty-eight billion, forty-seven million, three hundred forty-seven thousand, eight hundred sixty-seven".