38407173677 has 4 divisors (see below), whose sum is σ = 39445205436. Its totient is φ = 37369141920.

The previous prime is 38407173589. The next prime is 38407173683. The reversal of 38407173677 is 77637170483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77637170483 = 2069 ⋅37524007.

It can be written as a sum of positive squares in 2 ways, for example, as 34173589321 + 4233584356 = 184861^2 + 65066^2 .

It is a cyclic number.

It is not a de Polignac number, because 38407173677 - 2¹⁸ = 38406911533 is a prime.

It is a super-2 number, since 2×38407173677² (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 (38407173577) 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, 519015824 + ... + 519015897.

It is an arithmetic number, because the mean of its divisors is an integer number (9861301359).

Almost surely, 2^38407173677 is an apocalyptic number.

38407173677 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

38407173677 is a deficient number, since it is larger than the sum of its proper divisors (1038031759).

38407173677 is a wasteful number, since it uses less digits than its factorization.

38407173677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038031758.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 38407173677 in words is "thirty-eight billion, four hundred seven million, one hundred seventy-three thousand, six hundred seventy-seven".