13621653451 has 8 divisors (see below), whose sum is σ = 16386951680. Its totient is φ = 11061192168.

The previous prime is 13621653431. The next prime is 13621653499. The reversal of 13621653451 is 15435612631.

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 13621653451 - 2⁷ = 13621653323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13621653451.

It is not an unprimeable number, because it can be changed into a prime (13621653431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51209091 + ... + 51209356.

It is an arithmetic number, because the mean of its divisors is an integer number (2048368960).

Almost surely, 2^13621653451 is an apocalyptic number.

13621653451 is a deficient number, since it is larger than the sum of its proper divisors (2765298229).

13621653451 is a wasteful number, since it uses less digits than its factorization.

13621653451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102418473.

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

The spelling of 13621653451 in words is "thirteen billion, six hundred twenty-one million, six hundred fifty-three thousand, four hundred fifty-one".