2813745393 has 6 divisors (see below), whose sum is σ = 4064298914. Its totient is φ = 1875830256.

The previous prime is 2813745323. The next prime is 2813745419. The reversal of 2813745393 is 3935473182.

2813745393 is a `hidden beast` number, since 2 + 81 + 37 + 4 + 539 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1934504289 + 879241104 = 43983^2 + 29652^2 .

It is not a de Polignac number, because 2813745393 - 2¹² = 2813741297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2813745323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156319180 + ... + 156319197.

Almost surely, 2^2813745393 is an apocalyptic number.

It is an amenable number.

2813745393 is a deficient number, since it is larger than the sum of its proper divisors (1250553521).

2813745393 is a wasteful number, since it uses less digits than its factorization.

2813745393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312638383 (or 312638380 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 2813745393 is about 53044.7489672635. The cubic root of 2813745393 is about 1411.7623609645.

The spelling of 2813745393 in words is "two billion, eight hundred thirteen million, seven hundred forty-five thousand, three hundred ninety-three".