13712800861 has 4 divisors (see below), whose sum is σ = 13716509724. Its totient is φ = 13709092000.

The previous prime is 13712800807. The next prime is 13712800873. The reversal of 13712800861 is 16800821731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16800821731 = 37 ⋅454076263.

It can be written as a sum of positive squares in 2 ways, for example, as 2797775236 + 10915025625 = 52894^2 + 104475^2 .

It is a cyclic number.

It is not a de Polignac number, because 13712800861 - 2¹⁵ = 13712768093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13712800861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13712800891) 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, 1848880 + ... + 1856281.

It is an arithmetic number, because the mean of its divisors is an integer number (3429127431).

Almost surely, 2^13712800861 is an apocalyptic number.

It is an amenable number.

13712800861 is a deficient number, since it is larger than the sum of its proper divisors (3708863).

13712800861 is an equidigital number, since it uses as much as digits as its factorization.

13712800861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708862.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 13712800861 in words is "thirteen billion, seven hundred twelve million, eight hundred thousand, eight hundred sixty-one".