451968019974 has 12 divisors (see below), whose sum is σ = 979264043316. Its totient is φ = 150656006652.

The previous prime is 451968019969. The next prime is 451968020011. The reversal of 451968019974 is 479910869154.

451968019974 is a `hidden beast` number, since 451 + 9 + 6 + 80 + 19 + 97 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12554667204 + ... + 12554667239.

It is an arithmetic number, because the mean of its divisors is an integer number (81605336943).

Almost surely, 2^451968019974 is an apocalyptic number.

451968019974 is an abundant number, since it is smaller than the sum of its proper divisors (527296023342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451968019974 is a wasteful number, since it uses less digits than its factorization.

451968019974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25109334451 (or 25109334448 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 451968019974 in words is "four hundred fifty-one billion, nine hundred sixty-eight million, nineteen thousand, nine hundred seventy-four".