451402398725 has 6 divisors (see below), whose sum is σ = 559738974450. Its totient is φ = 361121918960.

The previous prime is 451402398701. The next prime is 451402398737. The reversal of 451402398725 is 527893204154.

It can be written as a sum of positive squares in 3 ways, for example, as 28820494756 + 422581903969 = 169766^2 + 650063^2 .

It is not a de Polignac number, because 451402398725 - 2⁶ = 451402398661 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9028047950 + ... + 9028047999.

It is an arithmetic number, because the mean of its divisors is an integer number (93289829075).

Almost surely, 2^451402398725 is an apocalyptic number.

It is an amenable number.

451402398725 is a deficient number, since it is larger than the sum of its proper divisors (108336575725).

451402398725 is a wasteful number, since it uses less digits than its factorization.

451402398725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18056095959 (or 18056095954 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 451402398725 in words is "four hundred fifty-one billion, four hundred two million, three hundred ninety-eight thousand, seven hundred twenty-five".