451978713 has 12 divisors (see below), whose sum is σ = 653075748. Its totient is φ = 301218720.

The previous prime is 451978699. The next prime is 451978721. The reversal of 451978713 is 317879154.

It can be written as a sum of positive squares in 2 ways, for example, as 178142409 + 273836304 = 13347^2 + 16548^2 .

It is not a de Polignac number, because 451978713 - 2¹⁸ = 451716569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451978733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28843 + ... + 41663.

It is an arithmetic number, because the mean of its divisors is an integer number (54422979).

Almost surely, 2^451978713 is an apocalyptic number.

It is an amenable number.

451978713 is a deficient number, since it is larger than the sum of its proper divisors (201097035).

451978713 is a wasteful number, since it uses less digits than its factorization.

451978713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16744 (or 16741 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 451978713 is about 21259.7909914467. The cubic root of 451978713 is about 767.4309800814.

The spelling of 451978713 in words is "four hundred fifty-one million, nine hundred seventy-eight thousand, seven hundred thirteen".