38648731517 has 8 divisors (see below), whose sum is σ = 42163677792. Its totient is φ = 35134022800.

The previous prime is 38648731493. The next prime is 38648731519. The reversal of 38648731517 is 71513784683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38648731517 - 2⁶ = 38648731453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38648731519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582167 + ... + 645147.

It is an arithmetic number, because the mean of its divisors is an integer number (5270459724).

Almost surely, 2^38648731517 is an apocalyptic number.

It is an amenable number.

38648731517 is a deficient number, since it is larger than the sum of its proper divisors (3514946275).

38648731517 is a wasteful number, since it uses less digits than its factorization.

38648731517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118779.

The product of its digits is 3386880, while the sum is 53.

The spelling of 38648731517 in words is "thirty-eight billion, six hundred forty-eight million, seven hundred thirty-one thousand, five hundred seventeen".