67709020392 has 96 divisors (see below), whose sum is σ = 204798965280. Its totient is φ = 20833536960.

The previous prime is 67709020391. The next prime is 67709020409. The reversal of 67709020392 is 29302090776.

It is a happy number.

It is a super-2 number, since 2×67709020392² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67709020391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1314334 + ... + 1364877.

It is an arithmetic number, because the mean of its divisors is an integer number (2133322555).

Almost surely, 2^67709020392 is an apocalyptic number.

It is an amenable number.

67709020392 is an abundant number, since it is smaller than the sum of its proper divisors (137089944888).

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

67709020392 is a wasteful number, since it uses less digits than its factorization.

67709020392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679245 (or 2679229 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 67709020392 in words is "sixty-seven billion, seven hundred nine million, twenty thousand, three hundred ninety-two".