13726536645 has 16 divisors (see below), whose sum is σ = 21985100352. Its totient is φ = 7313272320.

The previous prime is 13726536631. The next prime is 13726536653. The reversal of 13726536645 is 54663562731.

It is not a de Polignac number, because 13726536645 - 2⁵ = 13726536613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13726536594 and 13726536603.

It is a congruent number.

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, 456652 + ... + 485781.

It is an arithmetic number, because the mean of its divisors is an integer number (1374068772).

Almost surely, 2^13726536645 is an apocalyptic number.

13726536645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13726536645 is a deficient number, since it is larger than the sum of its proper divisors (8258563707).

13726536645 is an equidigital number, since it uses as much as digits as its factorization.

13726536645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943412.

The product of its digits is 2721600, while the sum is 48.

The spelling of 13726536645 in words is "thirteen billion, seven hundred twenty-six million, five hundred thirty-six thousand, six hundred forty-five".