13126871954 has 24 divisors (see below), whose sum is σ = 23246930160. Its totient is φ = 5541832296.

The previous prime is 13126871941. The next prime is 13126871957. The reversal of 13126871954 is 45917862131.

It is a junction number, because it is equal to n+sod(n) for n = 13126871899 and 13126871908.

It is not an unprimeable number, because it can be changed into a prime (13126871957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993044 + ... + 1006175.

It is an arithmetic number, because the mean of its divisors is an integer number (968622090).

Almost surely, 2^13126871954 is an apocalyptic number.

13126871954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13126871954 is a deficient number, since it is larger than the sum of its proper divisors (10120058206).

13126871954 is a wasteful number, since it uses less digits than its factorization.

13126871954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999302 (or 1999295 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The spelling of 13126871954 in words is "thirteen billion, one hundred twenty-six million, eight hundred seventy-one thousand, nine hundred fifty-four".