38487517399 has 2 divisors, whose sum is σ = 38487517400. Its totient is φ = 38487517398.

The previous prime is 38487517381. The next prime is 38487517463. The reversal of 38487517399 is 99371578483.

38487517399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (38487517463) can be obtained adding 38487517399 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38487517399 - 2²¹ = 38485420247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38487517399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38487517379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19243758699 + 19243758700.

It is an arithmetic number, because the mean of its divisors is an integer number (19243758700).

Almost surely, 2^38487517399 is an apocalyptic number.

38487517399 is a deficient number, since it is larger than the sum of its proper divisors (1).

38487517399 is an equidigital number, since it uses as much as digits as its factorization.

38487517399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 64.

The spelling of 38487517399 in words is "thirty-eight billion, four hundred eighty-seven million, five hundred seventeen thousand, three hundred ninety-nine".