13610861005 has 32 divisors (see below), whose sum is σ = 18796022784. Its totient is φ = 9268498176.

The previous prime is 13610861003. The next prime is 13610861021. The reversal of 13610861005 is 50016801631.

It is not a de Polignac number, because 13610861005 - 2¹ = 13610861003 is a prime.

It is a super-2 number, since 2×13610861005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13610861003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4500924 + ... + 4503946.

It is an arithmetic number, because the mean of its divisors is an integer number (587375712).

Almost surely, 2^13610861005 is an apocalyptic number.

It is an amenable number.

13610861005 is a deficient number, since it is larger than the sum of its proper divisors (5185161779).

13610861005 is a wasteful number, since it uses less digits than its factorization.

13610861005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3885.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 13610861005 in words is "thirteen billion, six hundred ten million, eight hundred sixty-one thousand, five".