13933771492 has 12 divisors (see below), whose sum is σ = 24384930220. Its totient is φ = 6966648576.

The previous prime is 13933771393. The next prime is 13933771493. The reversal of 13933771492 is 29417733931.

It can be written as a sum of positive squares in 2 ways, for example, as 8822093476 + 5111678016 = 93926^2 + 71496^2 .

It is not an unprimeable number, because it can be changed into a prime (13933771493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181984 + ... + 246952.

Almost surely, 2^13933771492 is an apocalyptic number.

It is an amenable number.

13933771492 is a deficient number, since it is larger than the sum of its proper divisors (10451158728).

13933771492 is a wasteful number, since it uses less digits than its factorization.

13933771492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118590 (or 118588 counting only the distinct ones).

The product of its digits is 857304, while the sum is 49.

The spelling of 13933771492 in words is "thirteen billion, nine hundred thirty-three million, seven hundred seventy-one thousand, four hundred ninety-two".