38897279884 has 24 divisors (see below), whose sum is σ = 70312531968. Its totient is φ = 18808815120.

The previous prime is 38897279843. The next prime is 38897279891. The reversal of 38897279884 is 48897279883.

It is an unprimeable number.

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, 85869 + ... + 291835.

It is an arithmetic number, because the mean of its divisors is an integer number (2929688832).

Almost surely, 2^38897279884 is an apocalyptic number.

It is an amenable number.

38897279884 is a deficient number, since it is larger than the sum of its proper divisors (31415252084).

38897279884 is a wasteful number, since it uses less digits than its factorization.

38897279884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207525 (or 207523 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 73.

Subtracting 38897279884 from its reverse (48897279883), we obtain a palindrome (9999999999).

The spelling of 38897279884 in words is "thirty-eight billion, eight hundred ninety-seven million, two hundred seventy-nine thousand, eight hundred eighty-four".