2456478731 has 24 divisors (see below), whose sum is σ = 2899670256. Its totient is φ = 2074705920.

The previous prime is 2456478701. The next prime is 2456478743. The reversal of 2456478731 is 1378746542.

It is not a de Polignac number, because 2456478731 - 2¹⁰ = 2456477707 is a prime.

It is a super-2 number, since 2×2456478731² = 12068575511710740722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2456478701) 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, 1220516 + ... + 1222526.

It is an arithmetic number, because the mean of its divisors is an integer number (120819594).

Almost surely, 2^2456478731 is an apocalyptic number.

2456478731 is a deficient number, since it is larger than the sum of its proper divisors (443191525).

2456478731 is a wasteful number, since it uses less digits than its factorization.

2456478731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2372 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 47.

The square root of 2456478731 is about 49562.8765408143. The cubic root of 2456478731 is about 1349.2869999941.

The spelling of 2456478731 in words is "two billion, four hundred fifty-six million, four hundred seventy-eight thousand, seven hundred thirty-one".