63930139250585 has 32 divisors (see below), whose sum is σ = 84032521092000. Its totient is φ = 46474323374080.

The previous prime is 63930139250573. The next prime is 63930139250597. The reversal of 63930139250585 is 58505293103936.

It is an interprime number because it is at equal distance from previous prime (63930139250573) and next prime (63930139250597).

It can be written as a sum of positive squares in 16 ways, for example, as 4747936408576 + 59182202842009 = 2178976^2 + 7692997^2 .

It is not a de Polignac number, because 63930139250585 - 2⁴ = 63930139250569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81321095 + ... + 82103475.

It is an arithmetic number, because the mean of its divisors is an integer number (2626016284125).

Almost surely, 2^{63930139250585} is an apocalyptic number.

It is an amenable number.

63930139250585 is a deficient number, since it is larger than the sum of its proper divisors (20102381841415).

63930139250585 is a wasteful number, since it uses less digits than its factorization.

63930139250585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815581.

The product of its (nonzero) digits is 26244000, while the sum is 59.

The spelling of 63930139250585 in words is "sixty-three trillion, nine hundred thirty billion, one hundred thirty-nine million, two hundred fifty thousand, five hundred eighty-five".