68737454874 has 160 divisors (see below), whose sum is σ = 173907689472. Its totient is φ = 20103876000.

The previous prime is 68737454873. The next prime is 68737454899. The reversal of 68737454874 is 47845473786.

68737454874 is a `hidden beast` number, since 6 + 87 + 3 + 7 + 4 + 548 + 7 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (68737454873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 23807859 + ... + 23810745.

Almost surely, 2^68737454874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68737454874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86953844736).

68737454874 is an abundant number, since it is smaller than the sum of its proper divisors (105170234598).

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

68737454874 is a wasteful number, since it uses less digits than its factorization.

68737454874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374 (or 3365 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 63.

The spelling of 68737454874 in words is "sixty-eight billion, seven hundred thirty-seven million, four hundred fifty-four thousand, eight hundred seventy-four".