13531622961 has 8 divisors (see below), whose sum is σ = 18142958880. Its totient is φ = 8970684512.

The previous prime is 13531622953. The next prime is 13531622971. The reversal of 13531622961 is 16922613531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531622961 - 2³ = 13531622953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531622921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12598740 + ... + 12599813.

It is an arithmetic number, because the mean of its divisors is an integer number (2267869860).

Almost surely, 2^13531622961 is an apocalyptic number.

It is an amenable number.

13531622961 is a deficient number, since it is larger than the sum of its proper divisors (4611335919).

13531622961 is a wasteful number, since it uses less digits than its factorization.

13531622961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25198735.

The product of its digits is 58320, while the sum is 39.

The spelling of 13531622961 in words is "thirteen billion, five hundred thirty-one million, six hundred twenty-two thousand, nine hundred sixty-one".