38678630657437 has 64 divisors (see below), whose sum is σ = 42406185830400. Its totient is φ = 35160109620480.

The previous prime is 38678630657383. The next prime is 38678630657467. The reversal of 38678630657437 is 73475603687683.

It is not a de Polignac number, because 38678630657437 - 2³⁵ = 38644270919069 is a prime.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38678630657437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678630657467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7731084978 + ... + 7731089980.

It is an arithmetic number, because the mean of its divisors is an integer number (662596653600).

Almost surely, 2^{38678630657437} is an apocalyptic number.

It is an amenable number.

38678630657437 is a deficient number, since it is larger than the sum of its proper divisors (3727555172963).

38678630657437 is a wasteful number, since it uses less digits than its factorization.

38678630657437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986.

The product of its (nonzero) digits is 2560481280, while the sum is 73.

The spelling of 38678630657437 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred thirty million, six hundred fifty-seven thousand, four hundred thirty-seven".