13219908534 has 32 divisors (see below), whose sum is σ = 33574371840. Its totient is φ = 3777116616.

The previous prime is 13219908511. The next prime is 13219908539. The reversal of 13219908534 is 43580991231.

It is a happy number.

13219908534 is a `hidden beast` number, since 1 + 3 + 21 + 9 + 90 + 8 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13219908534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13219908539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17486274 + ... + 17487029.

It is an arithmetic number, because the mean of its divisors is an integer number (1049199120).

Almost surely, 2^13219908534 is an apocalyptic number.

13219908534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13219908534 is an abundant number, since it is smaller than the sum of its proper divisors (20354463306).

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

13219908534 is a wasteful number, since it uses less digits than its factorization.

13219908534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34973321 (or 34973315 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 13219908534 in words is "thirteen billion, two hundred nineteen million, nine hundred eight thousand, five hundred thirty-four".