13438651534 has 32 divisors (see below), whose sum is σ = 25161394176. Its totient is φ = 5229719520.

The previous prime is 13438651519. The next prime is 13438651573. The reversal of 13438651534 is 43515683431.

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, 82344 + ... + 183460.

It is an arithmetic number, because the mean of its divisors is an integer number (786293568).

Almost surely, 2^13438651534 is an apocalyptic number.

13438651534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13438651534 is a deficient number, since it is larger than the sum of its proper divisors (11722742642).

13438651534 is a wasteful number, since it uses less digits than its factorization.

13438651534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102000.

The product of its digits is 518400, while the sum is 43.

The spelling of 13438651534 in words is "thirteen billion, four hundred thirty-eight million, six hundred fifty-one thousand, five hundred thirty-four".