2457479493 has 40 divisors (see below), whose sum is σ = 4199741568. Its totient is φ = 1402850016.

The previous prime is 2457479491. The next prime is 2457479503. The reversal of 2457479493 is 3949747542.

2457479493 is a `hidden beast` number, since 24 + 574 + 7 + 9 + 49 + 3 = 666.

It is not a de Polignac number, because 2457479493 - 2¹ = 2457479491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2457479491) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 845080 + ... + 847982.

Almost surely, 2^2457479493 is an apocalyptic number.

2457479493 is the 31353-rd heptagonal number.

It is an amenable number.

2457479493 is a deficient number, since it is larger than the sum of its proper divisors (1742262075).

2457479493 is a wasteful number, since it uses less digits than its factorization.

2457479493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415 (or 4406 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 2457479493 is about 49572.9713957112. The cubic root of 2457479493 is about 1349.4702069304.

The spelling of 2457479493 in words is "two billion, four hundred fifty-seven million, four hundred seventy-nine thousand, four hundred ninety-three".