13213657460 has 12 divisors (see below), whose sum is σ = 27748680708. Its totient is φ = 5285462976.

The previous prime is 13213657447. The next prime is 13213657463. The reversal of 13213657460 is 6475631231.

It can be written as a sum of positive squares in 2 ways, for example, as 3012253456 + 10201404004 = 54884^2 + 101002^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213657463) 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, 330341417 + ... + 330341456.

It is an arithmetic number, because the mean of its divisors is an integer number (2312390059).

Almost surely, 2^13213657460 is an apocalyptic number.

13213657460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213657460 is an abundant number, since it is smaller than the sum of its proper divisors (14535023248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13213657460 is a wasteful number, since it uses less digits than its factorization.

13213657460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660682882 (or 660682880 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 13213657460 in words is "thirteen billion, two hundred thirteen million, six hundred fifty-seven thousand, four hundred sixty".