67899000808 has 16 divisors (see below), whose sum is σ = 128165062500. Its totient is φ = 33721650816.

The previous prime is 67899000797. The next prime is 67899000877. The reversal of 67899000808 is 80800099876.

It can be written as a sum of positive squares in 2 ways, for example, as 67755048804 + 143952004 = 260298^2 + 11998^2 .

It is a super-2 number, since 2×67899000808² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28479933 + ... + 28482316.

Almost surely, 2^67899000808 is an apocalyptic number.

It is an amenable number.

67899000808 is a deficient number, since it is larger than the sum of its proper divisors (60266061692).

67899000808 is a wasteful number, since it uses less digits than its factorization.

67899000808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56962404 (or 56962400 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 67899000808 in words is "sixty-seven billion, eight hundred ninety-nine million, eight hundred eight", and thus it is an aban number.