138286630587 has 64 divisors (see below), whose sum is σ = 221539691520. Its totient is φ = 75056357376.

The previous prime is 138286630583. The next prime is 138286630597. The reversal of 138286630587 is 785036682831.

It is not a de Polignac number, because 138286630587 - 2² = 138286630583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138286630583) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38230603 + ... + 38234219.

It is an arithmetic number, because the mean of its divisors is an integer number (3461557680).

Almost surely, 2^138286630587 is an apocalyptic number.

138286630587 is a deficient number, since it is larger than the sum of its proper divisors (83253060933).

138286630587 is a wasteful number, since it uses less digits than its factorization.

138286630587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 138286630587 in words is "one hundred thirty-eight billion, two hundred eighty-six million, six hundred thirty thousand, five hundred eighty-seven".