38685018507 has 8 divisors (see below), whose sum is σ = 51581130960. Its totient is φ = 25789459200.

The previous prime is 38685018487. The next prime is 38685018523. The reversal of 38685018507 is 70581058683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38685018507 - 2¹¹ = 38685016459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38685018507.

It is not an unprimeable number, because it can be changed into a prime (38685018557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69507 + ... + 286707.

It is an arithmetic number, because the mean of its divisors is an integer number (6447641370).

Almost surely, 2^38685018507 is an apocalyptic number.

38685018507 is a deficient number, since it is larger than the sum of its proper divisors (12896112453).

38685018507 is a wasteful number, since it uses less digits than its factorization.

38685018507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276573.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 38685018507 in words is "thirty-eight billion, six hundred eighty-five million, eighteen thousand, five hundred seven".