13011517946 has 24 divisors (see below), whose sum is σ = 23541228000. Its totient is φ = 5282869896.

The previous prime is 13011517931. The next prime is 13011517949. The reversal of 13011517946 is 64971511031.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (13011517949) 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, 1282196 + ... + 1292303.

It is an arithmetic number, because the mean of its divisors is an integer number (980884500).

Almost surely, 2^13011517946 is an apocalyptic number.

13011517946 is a deficient number, since it is larger than the sum of its proper divisors (10529710054).

13011517946 is a wasteful number, since it uses less digits than its factorization.

13011517946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574546 (or 2574527 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 13011517946 in words is "thirteen billion, eleven million, five hundred seventeen thousand, nine hundred forty-six".