451448777160976 has 135 divisors (see below), whose sum is σ = 1045781111316879. Its totient is φ = 188239732095744.

The previous prime is 451448777160949. The next prime is 451448777161049. The reversal of 451448777160976 is 679061777844154.

The square root of 451448777160976 is 21247324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8555742000400 + 442893035160576 = 2925020^2 + 21045024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22012217410 + ... + 22012237918.

Almost surely, 2^{451448777160976} is an apocalyptic number.

451448777160976 is the 21247324-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451448777160976

451448777160976 is an abundant number, since it is smaller than the sum of its proper divisors (594332334155903).

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

451448777160976 is an frugal number, since it uses more digits than its factorization.

451448777160976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41114 (or 20555 counting only the distinct ones).

The product of its (nonzero) digits is 1991485440, while the sum is 76.

The spelling of 451448777160976 in words is "four hundred fifty-one trillion, four hundred forty-eight billion, seven hundred seventy-seven million, one hundred sixty thousand, nine hundred seventy-six".