13037246861 has 4 divisors (see below), whose sum is σ = 13094178300. Its totient is φ = 12980315424.

The previous prime is 13037246813. The next prime is 13037246869. The reversal of 13037246861 is 16864273031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10834728100 + 2202518761 = 104090^2 + 46931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13037246861 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 (13037246869) 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, 28465376 + ... + 28465833.

It is an arithmetic number, because the mean of its divisors is an integer number (3273544575).

Almost surely, 2^13037246861 is an apocalyptic number.

It is an amenable number.

13037246861 is a deficient number, since it is larger than the sum of its proper divisors (56931439).

13037246861 is an equidigital number, since it uses as much as digits as its factorization.

13037246861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56931438.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 13037246861 in words is "thirteen billion, thirty-seven million, two hundred forty-six thousand, eight hundred sixty-one".