13256948641 has 8 divisors (see below), whose sum is σ = 13958784000. Its totient is φ = 12555523440.

The previous prime is 13256948623. The next prime is 13256948689. The reversal of 13256948641 is 14684965231.

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 13256948641 - 2⁹ = 13256948129 is a prime.

It is a super-2 number, since 2×13256948641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13256948941) 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, 35041 + ... + 166558.

It is an arithmetic number, because the mean of its divisors is an integer number (1744848000).

Almost surely, 2^13256948641 is an apocalyptic number.

It is an amenable number.

13256948641 is a deficient number, since it is larger than the sum of its proper divisors (701835359).

13256948641 is a wasteful number, since it uses less digits than its factorization.

13256948641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205079.

The product of its digits is 1244160, while the sum is 49.

The spelling of 13256948641 in words is "thirteen billion, two hundred fifty-six million, nine hundred forty-eight thousand, six hundred forty-one".