451383978125 has 12 divisors (see below), whose sum is σ = 564193865844. Its totient is φ = 361107180000.

The previous prime is 451383978061. The next prime is 451383978137. The reversal of 451383978125 is 521879383154.

It can be written as a sum of positive squares in 6 ways, for example, as 446142507721 + 5241470404 = 667939^2 + 72398^2 .

It is not a de Polignac number, because 451383978125 - 2⁶ = 451383978061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72218312 + ... + 72224561.

It is an arithmetic number, because the mean of its divisors is an integer number (47016155487).

Almost surely, 2^451383978125 is an apocalyptic number.

It is an amenable number.

451383978125 is a deficient number, since it is larger than the sum of its proper divisors (112809887719).

451383978125 is an frugal number, since it uses more digits than its factorization.

451383978125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144442898 (or 144442878 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 451383978125 in words is "four hundred fifty-one billion, three hundred eighty-three million, nine hundred seventy-eight thousand, one hundred twenty-five".