38677661237 has 4 divisors (see below), whose sum is σ = 38680371456. Its totient is φ = 38674951020.

The previous prime is 38677661227. The next prime is 38677661249. The reversal of 38677661237 is 73216677683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73216677683 = 95747 ⋅764689.

It is a cyclic number.

It is not a de Polignac number, because 38677661237 - 2⁶ = 38677661173 is a prime.

It is a super-2 number, since 2×38677661237² (a number of 22 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 (38677661227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333589 + ... + 1362282.

It is an arithmetic number, because the mean of its divisors is an integer number (9670092864).

Almost surely, 2^38677661237 is an apocalyptic number.

It is an amenable number.

38677661237 is a deficient number, since it is larger than the sum of its proper divisors (2710219).

38677661237 is a wasteful number, since it uses less digits than its factorization.

38677661237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710218.

The product of its digits is 10668672, while the sum is 56.

The spelling of 38677661237 in words is "thirty-eight billion, six hundred seventy-seven million, six hundred sixty-one thousand, two hundred thirty-seven".