13214452644 has 48 divisors (see below), whose sum is σ = 34644657600. Its totient is φ = 4355322048.

The previous prime is 13214452639. The next prime is 13214452681. The reversal of 13214452644 is 44625441231.

13214452644 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 4 + 4 + 5 + 2 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13214452599 and 13214452608.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677782 + ... + 697005.

It is an arithmetic number, because the mean of its divisors is an integer number (721763700).

Almost surely, 2^13214452644 is an apocalyptic number.

It is an amenable number.

13214452644 is an abundant number, since it is smaller than the sum of its proper divisors (21430204956).

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

13214452644 is a wasteful number, since it uses less digits than its factorization.

13214452644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374889 (or 1374881 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 13214452644 its reverse (44625441231), we get a palindrome (57839893875).

The spelling of 13214452644 in words is "thirteen billion, two hundred fourteen million, four hundred fifty-two thousand, six hundred forty-four".