38407811387 has 4 divisors (see below), whose sum is σ = 41899430616. Its totient is φ = 34916192160.

The previous prime is 38407811369. The next prime is 38407811401. The reversal of 38407811387 is 78311870483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38407811387 - 2³² = 34112844091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38407841387) 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 3 ways as a sum of consecutive naturals, for example, 1745809598 + ... + 1745809619.

It is an arithmetic number, because the mean of its divisors is an integer number (10474857654).

Almost surely, 2^38407811387 is an apocalyptic number.

38407811387 is a deficient number, since it is larger than the sum of its proper divisors (3491619229).

38407811387 is a wasteful number, since it uses less digits than its factorization.

38407811387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491619228.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 38407811387 in words is "thirty-eight billion, four hundred seven million, eight hundred eleven thousand, three hundred eighty-seven".