67939493976 has 96 divisors (see below), whose sum is σ = 188362746000. Its totient is φ = 22110342912.

The previous prime is 67939493917. The next prime is 67939494013.

67939493976 is a `hidden beast` number, since 67 + 9 + 3 + 9 + 493 + 9 + 76 = 666.

67939493976 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 13090390 + ... + 13095578.

Almost surely, 2^67939493976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67939493976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94181373000).

67939493976 is an abundant number, since it is smaller than the sum of its proper divisors (120423252024).

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

67939493976 is a wasteful number, since it uses less digits than its factorization.

67939493976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473 (or 9466 counting only the distinct ones).

The product of its digits is 416649744, while the sum is 72.

The spelling of 67939493976 in words is "sixty-seven billion, nine hundred thirty-nine million, four hundred ninety-three thousand, nine hundred seventy-six".