38678632724381 has 16 divisors (see below), whose sum is σ = 42097361161968. Its totient is φ = 35323499520000.

The previous prime is 38678632724363. The next prime is 38678632724383. The reversal of 38678632724381 is 18342723687683.

It can be written as a sum of positive squares in 8 ways, for example, as 11748407484025 + 26930225240356 = 3427595^2 + 5189434^2 .

It is a cyclic number.

It is not a de Polignac number, because 38678632724381 - 2¹⁴ = 38678632707997 is a prime.

It is a super-2 number, since 2×38678632724381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678632724383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326200 + ... + 8894721.

It is an arithmetic number, because the mean of its divisors is an integer number (2631085072623).

Almost surely, 2^{38678632724381} is an apocalyptic number.

It is an amenable number.

38678632724381 is a deficient number, since it is larger than the sum of its proper divisors (3418728437587).

38678632724381 is a wasteful number, since it uses less digits than its factorization.

38678632724381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10224032.

The product of its digits is 390168576, while the sum is 68.

The spelling of 38678632724381 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred thirty-two million, seven hundred twenty-four thousand, three hundred eighty-one".