67900012668 has 24 divisors (see below), whose sum is σ = 176037070160. Its totient is φ = 22633337520.

The previous prime is 67900012657. The next prime is 67900012669. The reversal of 67900012668 is 86621000976.

It is a super-2 number, since 2×67900012668² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67900012669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314351803 + ... + 314352018.

Almost surely, 2^67900012668 is an apocalyptic number.

It is an amenable number.

67900012668 is an abundant number, since it is smaller than the sum of its proper divisors (108137057492).

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

67900012668 is a wasteful number, since it uses less digits than its factorization.

67900012668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628703834 (or 628703826 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 67900012668 in words is "sixty-seven billion, nine hundred million, twelve thousand, six hundred sixty-eight".