67870790838 has 28 divisors (see below), whose sum is σ = 152639456748. Its totient is φ = 22623596460.

The previous prime is 67870790821. The next prime is 67870790843. The reversal of 67870790838 is 83809707876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 23273848 + ... + 23276763.

Almost surely, 2^67870790838 is an apocalyptic number.

67870790838 is an abundant number, since it is smaller than the sum of its proper divisors (84768665910).

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

67870790838 is an equidigital number, since it uses as much as digits as its factorization.

67870790838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46550631 (or 46550616 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 67870790838 in words is "sixty-seven billion, eight hundred seventy million, seven hundred ninety thousand, eight hundred thirty-eight".