13394922570 has 48 divisors (see below), whose sum is σ = 35303895432. Its totient is φ = 3523046400.

The previous prime is 13394922559. The next prime is 13394922571. The reversal of 13394922570 is 7522949331.

13394922570 is a `hidden beast` number, since 1 + 3 + 39 + 49 + 2 + 2 + 570 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13231670841 + 163251729 = 115029^2 + 12777^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13394922571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1012831 + ... + 1025970.

Almost surely, 2^13394922570 is an apocalyptic number.

13394922570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13394922570 is an abundant number, since it is smaller than the sum of its proper divisors (21908972862).

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

13394922570 is a wasteful number, since it uses less digits than its factorization.

13394922570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038887 (or 2038884 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 13394922570 in words is "thirteen billion, three hundred ninety-four million, nine hundred twenty-two thousand, five hundred seventy".