38537007613 has 8 divisors (see below), whose sum is σ = 41513529848. Its totient is φ = 35562219264.

The previous prime is 38537007589. The next prime is 38537007623. The reversal of 38537007613 is 31670073583.

It can be written as a sum of positive squares in 4 ways, for example, as 2171280409 + 36365727204 = 46597^2 + 190698^2 .

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

It is not a de Polignac number, because 38537007613 - 2²¹ = 38534910461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38537007613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38537007623) 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, 387120 + ... + 476377.

It is an arithmetic number, because the mean of its divisors is an integer number (5189191231).

Almost surely, 2^38537007613 is an apocalyptic number.

It is an amenable number.

38537007613 is a deficient number, since it is larger than the sum of its proper divisors (2976522235).

38537007613 is a wasteful number, since it uses less digits than its factorization.

38537007613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866943.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 38537007613 in words is "thirty-eight billion, five hundred thirty-seven million, seven thousand, six hundred thirteen".