13501194368 has 64 divisors (see below), whose sum is σ = 28687591800. Its totient is φ = 6306988032.

The previous prime is 13501194347. The next prime is 13501194379. The reversal of 13501194368 is 86349110531.

It can be written as a sum of positive squares in 4 ways, for example, as 13495004224 + 6190144 = 116168^2 + 2488^2 .

It is a tau number, because it is divible by the number of its divisors (64).

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, 275468 + ... + 320756.

Almost surely, 2^13501194368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13501194368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14343795900).

13501194368 is an abundant number, since it is smaller than the sum of its proper divisors (15186397432).

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

13501194368 is a wasteful number, since it uses less digits than its factorization.

13501194368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457 (or 45445 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 13501194368 in words is "thirteen billion, five hundred one million, one hundred ninety-four thousand, three hundred sixty-eight".