13621105534 has 16 divisors (see below), whose sum is σ = 21678710400. Its totient is φ = 6396542464.

The previous prime is 13621105513. The next prime is 13621105577. The reversal of 13621105534 is 43550112631.

It is a junction number, because it is equal to n+sod(n) for n = 13621105496 and 13621105505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401899 + ... + 434470.

It is an arithmetic number, because the mean of its divisors is an integer number (1354919400).

Almost surely, 2^13621105534 is an apocalyptic number.

13621105534 is a deficient number, since it is larger than the sum of its proper divisors (8057604866).

13621105534 is a wasteful number, since it uses less digits than its factorization.

13621105534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836867.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13621105534 in words is "thirteen billion, six hundred twenty-one million, one hundred five thousand, five hundred thirty-four".