13061657851 has 4 divisors (see below), whose sum is σ = 14249081304. Its totient is φ = 11874234400.

The previous prime is 13061657849. The next prime is 13061657867. The reversal of 13061657851 is 15875616031.

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

It is a cyclic number.

It is not a de Polignac number, because 13061657851 - 2¹ = 13061657849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13061657798 and 13061657807.

It is not an unprimeable number, because it can be changed into a prime (13061657801) 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, 593711710 + ... + 593711731.

It is an arithmetic number, because the mean of its divisors is an integer number (3562270326).

Almost surely, 2^13061657851 is an apocalyptic number.

13061657851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13061657851 is a deficient number, since it is larger than the sum of its proper divisors (1187423453).

13061657851 is a wasteful number, since it uses less digits than its factorization.

13061657851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187423452.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 13061657851 in words is "thirteen billion, sixty-one million, six hundred fifty-seven thousand, eight hundred fifty-one".