63139086855 has 96 divisors (see below), whose sum is σ = 118671920640. Its totient is φ = 30870512640.

The previous prime is 63139086833. The next prime is 63139086887. The reversal of 63139086855 is 55868093136.

It is not a de Polignac number, because 63139086855 - 2⁷ = 63139086727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 95520225 + ... + 95520885.

It is an arithmetic number, because the mean of its divisors is an integer number (1236165840).

Almost surely, 2^63139086855 is an apocalyptic number.

63139086855 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

63139086855 is a deficient number, since it is larger than the sum of its proper divisors (55532833785).

63139086855 is a wasteful number, since it uses less digits than its factorization.

63139086855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 63139086855 in words is "sixty-three billion, one hundred thirty-nine million, eighty-six thousand, eight hundred fifty-five".