38109887744519 has 12 divisors (see below), whose sum is σ = 40228244578656. Its totient is φ = 36097815587328.

The previous prime is 38109887744501. The next prime is 38109887744531. The reversal of 38109887744519 is 91544778890183.

It is not a de Polignac number, because 38109887744519 - 2¹⁶ = 38109887678983 is a prime.

It is a super-2 number, since 2×38109887744519² (a number of 28 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 (38109887744569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7117754 + ... + 11264199.

It is an arithmetic number, because the mean of its divisors is an integer number (3352353714888).

Almost surely, 2^{38109887744519} is an apocalyptic number.

38109887744519 is a deficient number, since it is larger than the sum of its proper divisors (2118356834137).

38109887744519 is a wasteful number, since it uses less digits than its factorization.

38109887744519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18387734 (or 18387715 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 74.

The spelling of 38109887744519 in words is "thirty-eight trillion, one hundred nine billion, eight hundred eighty-seven million, seven hundred forty-four thousand, five hundred nineteen".