999988000038 has 16 divisors (see below), whose sum is σ = 2222195555760. Its totient is φ = 333329333328.

The previous prime is 999988000003. The next prime is 999988000057. The reversal of 999988000038 is 830000889999.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9259148095 + ... + 9259148202.

It is an arithmetic number, because the mean of its divisors is an integer number (138887222235).

Almost surely, 2^999988000038 is an apocalyptic number.

999988000038 is an abundant number, since it is smaller than the sum of its proper divisors (1222207555722).

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

999988000038 is a wasteful number, since it uses less digits than its factorization.

999988000038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18518296308 (or 18518296302 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 63.

The spelling of 999988000038 in words is "nine hundred ninety-nine billion, nine hundred eighty-eight million, thirty-eight", and thus it is an aban number.