67351374972 has 72 divisors (see below), whose sum is σ = 194610360672. Its totient is φ = 19239321600.

The previous prime is 67351374899. The next prime is 67351374991. The reversal of 67351374972 is 27947315376.

67351374972 is a `hidden beast` number, since 6 + 73 + 51 + 37 + 497 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1346572 + ... + 1395692.

It is an arithmetic number, because the mean of its divisors is an integer number (2702921676).

Almost surely, 2^67351374972 is an apocalyptic number.

It is an amenable number.

67351374972 is an abundant number, since it is smaller than the sum of its proper divisors (127258985700).

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

67351374972 is a wasteful number, since it uses less digits than its factorization.

67351374972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54579 (or 54574 counting only the distinct ones).

The product of its digits is 6667920, while the sum is 54.

The spelling of 67351374972 in words is "sixty-seven billion, three hundred fifty-one million, three hundred seventy-four thousand, nine hundred seventy-two".