13031218446 has 16 divisors (see below), whose sum is σ = 26080717824. Its totient is φ = 4340692664.

The previous prime is 13031218439. The next prime is 13031218451. The reversal of 13031218446 is 64481213031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752430 + ... + 769553.

It is an arithmetic number, because the mean of its divisors is an integer number (1630044864).

Almost surely, 2^13031218446 is an apocalyptic number.

13031218446 is an abundant number, since it is smaller than the sum of its proper divisors (13049499378).

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

13031218446 is a wasteful number, since it uses less digits than its factorization.

13031218446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523415.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 13031218446 in words is "thirteen billion, thirty-one million, two hundred eighteen thousand, four hundred forty-six".