38869791428 has 12 divisors (see below), whose sum is σ = 73254607020. Its totient is φ = 17939903712.

The previous prime is 38869791407. The next prime is 38869791463. The reversal of 38869791428 is 82419796883.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26192832964 + 12676958464 = 161842^2 + 112592^2 .

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, 373747943 + ... + 373748046.

It is an arithmetic number, because the mean of its divisors is an integer number (6104550585).

Almost surely, 2^38869791428 is an apocalyptic number.

It is an amenable number.

38869791428 is a deficient number, since it is larger than the sum of its proper divisors (34384815592).

38869791428 is a wasteful number, since it uses less digits than its factorization.

38869791428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747496006 (or 747496004 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 65.

The spelling of 38869791428 in words is "thirty-eight billion, eight hundred sixty-nine million, seven hundred ninety-one thousand, four hundred twenty-eight".