38900993890 has 16 divisors (see below), whose sum is σ = 76387406400. Its totient is φ = 14145815920.

The previous prime is 38900993827. The next prime is 38900993893. The reversal of 38900993890 is 9839900983.

It is not an unprimeable number, because it can be changed into a prime (38900993893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176822590 + ... + 176822809.

It is an arithmetic number, because the mean of its divisors is an integer number (4774212900).

Almost surely, 2^38900993890 is an apocalyptic number.

38900993890 is a deficient number, since it is larger than the sum of its proper divisors (37486412510).

38900993890 is a wasteful number, since it uses less digits than its factorization.

38900993890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353645417.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 38900993890 in words is "thirty-eight billion, nine hundred million, nine hundred ninety-three thousand, eight hundred ninety".