67420806975 has 96 divisors (see below), whose sum is σ = 131033280000. Its totient is φ = 33892784640.

The previous prime is 67420806877. The next prime is 67420806997. The reversal of 67420806975 is 57960802476.

It is not a de Polignac number, because 67420806975 - 2³¹ = 65273323327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2538967 + ... + 2565383.

It is an arithmetic number, because the mean of its divisors is an integer number (1364930000).

Almost surely, 2^67420806975 is an apocalyptic number.

67420806975 is a deficient number, since it is larger than the sum of its proper divisors (63612473025).

67420806975 is a wasteful number, since it uses less digits than its factorization.

67420806975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26654 (or 26643 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 67420806975 in words is "sixty-seven billion, four hundred twenty million, eight hundred six thousand, nine hundred seventy-five".