137861408585 has 8 divisors (see below), whose sum is σ = 166951431240. Its totient is φ = 109277299584.

The previous prime is 137861408579. The next prime is 137861408617. The reversal of 137861408585 is 585804168731.

It can be written as a sum of positive squares in 4 ways, for example, as 22381057609 + 115480350976 = 149603^2 + 339824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137861408585 - 2⁴ = 137861408569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137861408585.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126477812 + ... + 126478901.

It is an arithmetic number, because the mean of its divisors is an integer number (20868928905).

Almost surely, 2^137861408585 is an apocalyptic number.

It is an amenable number.

137861408585 is a deficient number, since it is larger than the sum of its proper divisors (29090022655).

137861408585 is a wasteful number, since it uses less digits than its factorization.

137861408585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252956827.

The product of its (nonzero) digits is 6451200, while the sum is 56.

The spelling of 137861408585 in words is "one hundred thirty-seven billion, eight hundred sixty-one million, four hundred eight thousand, five hundred eighty-five".