13626442501 has 4 divisors (see below), whose sum is σ = 15573077152. Its totient is φ = 11679807852.

The previous prime is 13626442493. The next prime is 13626442519. The reversal of 13626442501 is 10524462631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13626442501 - 2³ = 13626442493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13626442201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973317315 + ... + 973317328.

It is an arithmetic number, because the mean of its divisors is an integer number (3893269288).

Almost surely, 2^13626442501 is an apocalyptic number.

It is an amenable number.

13626442501 is a deficient number, since it is larger than the sum of its proper divisors (1946634651).

13626442501 is an equidigital number, since it uses as much as digits as its factorization.

13626442501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946634650.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 13626442501 in words is "thirteen billion, six hundred twenty-six million, four hundred forty-two thousand, five hundred one".