13129859391 has 16 divisors (see below), whose sum is σ = 19328077440. Its totient is φ = 7861615520.

The previous prime is 13129859377. The next prime is 13129859423. The reversal of 13129859391 is 19395892131.

It is not a de Polignac number, because 13129859391 - 2⁷ = 13129859263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129859371) 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, 2394096 + ... + 2399573.

It is an arithmetic number, because the mean of its divisors is an integer number (1208004840).

Almost surely, 2^13129859391 is an apocalyptic number.

13129859391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13129859391 is a deficient number, since it is larger than the sum of its proper divisors (6198218049).

13129859391 is a wasteful number, since it uses less digits than its factorization.

13129859391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793766.

The product of its digits is 524880, while the sum is 51.

It can be divided in two parts, 13129859 and 391, that added together give a triangular number (13130250 = T₅₁₂₄).

The spelling of 13129859391 in words is "thirteen billion, one hundred twenty-nine million, eight hundred fifty-nine thousand, three hundred ninety-one".