20860113524087 has 4 divisors (see below), whose sum is σ = 21767074981680. Its totient is φ = 19953152066496.

The previous prime is 20860113524069. The next prime is 20860113524093. The reversal of 20860113524087 is 78042531106802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20860113524087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860113524287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453480728762 + ... + 453480728807.

It is an arithmetic number, because the mean of its divisors is an integer number (5441768745420).

Almost surely, 2^{20860113524087} is an apocalyptic number.

20860113524087 is a deficient number, since it is larger than the sum of its proper divisors (906961457593).

20860113524087 is an equidigital number, since it uses as much as digits as its factorization.

20860113524087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906961457592.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 20860113524087 in words is "twenty trillion, eight hundred sixty billion, one hundred thirteen million, five hundred twenty-four thousand, eighty-seven".