38487517487 has 2 divisors, whose sum is σ = 38487517488. Its totient is φ = 38487517486.

The previous prime is 38487517483. The next prime is 38487517529. The reversal of 38487517487 is 78471578483.

38487517487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38487517487 - 2² = 38487517483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38487517483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19243758743 + 19243758744.

It is an arithmetic number, because the mean of its divisors is an integer number (19243758744).

Almost surely, 2^38487517487 is an apocalyptic number.

38487517487 is a deficient number, since it is larger than the sum of its proper divisors (1).

38487517487 is an equidigital number, since it uses as much as digits as its factorization.

38487517487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42147840, while the sum is 62.

The spelling of 38487517487 in words is "thirty-eight billion, four hundred eighty-seven million, five hundred seventeen thousand, four hundred eighty-seven".