38917445099813 has 8 divisors (see below), whose sum is σ = 44478105302400. Its totient is φ = 33357041194320.

The previous prime is 38917445099809. The next prime is 38917445099831. The reversal of 38917445099813 is 31899054471983.

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 38917445099813 - 2² = 38917445099809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38917445009813) 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, 63748778 + ... + 64356363.

It is an arithmetic number, because the mean of its divisors is an integer number (5559763162800).

Almost surely, 2^{38917445099813} is an apocalyptic number.

It is an amenable number.

38917445099813 is a deficient number, since it is larger than the sum of its proper divisors (5560660202587).

38917445099813 is a wasteful number, since it uses less digits than its factorization.

38917445099813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128148547.

The product of its (nonzero) digits is 235146240, while the sum is 71.

The spelling of 38917445099813 in words is "thirty-eight trillion, nine hundred seventeen billion, four hundred forty-five million, ninety-nine thousand, eight hundred thirteen".