13261451356 has 12 divisors (see below), whose sum is σ = 24428989480. Its totient is φ = 6281740080.

The previous prime is 13261451323. The next prime is 13261451369. The reversal of 13261451356 is 65315416231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87246315 + ... + 87246466.

Almost surely, 2^13261451356 is an apocalyptic number.

It is an amenable number.

13261451356 is a deficient number, since it is larger than the sum of its proper divisors (11167538124).

13261451356 is a wasteful number, since it uses less digits than its factorization.

13261451356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174492804 (or 174492802 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

Adding to 13261451356 its reverse (65315416231), we get a palindrome (78576867587).

The spelling of 13261451356 in words is "thirteen billion, two hundred sixty-one million, four hundred fifty-one thousand, three hundred fifty-six".