38678630656237 has 12 divisors (see below), whose sum is σ = 45784876214140. Its totient is φ = 32457592157760.

The previous prime is 38678630656201. The next prime is 38678630656343. The reversal of 38678630656237 is 73265603687683.

It can be written as a sum of positive squares in 2 ways, for example, as 11001288278761 + 27677342377476 = 3316819^2 + 5260926^2 .

It is not a de Polignac number, because 38678630656237 - 2²³ = 38678622267629 is a prime.

It is a super-2 number, since 2×38678630656237² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (70) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678630656037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12294540912 + ... + 12294544057.

Almost surely, 2^{38678630656237} is an apocalyptic number.

It is an amenable number.

38678630656237 is a deficient number, since it is larger than the sum of its proper divisors (7106245557903).

38678630656237 is a wasteful number, since it uses less digits than its factorization.

38678630656237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24589085004 (or 24589084993 counting only the distinct ones).

The product of its (nonzero) digits is 1097349120, while the sum is 70.

The spelling of 38678630656237 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred thirty million, six hundred fifty-six thousand, two hundred thirty-seven".