451977964 has 6 divisors (see below), whose sum is σ = 790961444. Its totient is φ = 225988980.

The previous prime is 451977949. The next prime is 451977971. The reversal of 451977964 is 469779154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56497242 + ... + 56497249.

Almost surely, 2^451977964 is an apocalyptic number.

It is an amenable number.

451977964 is a deficient number, since it is larger than the sum of its proper divisors (338983480).

451977964 is a wasteful number, since it uses less digits than its factorization.

451977964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112994495 (or 112994493 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 52.

The square root of 451977964 is about 21259.7733760264. The cubic root of 451977964 is about 767.4305561632.

The spelling of 451977964 in words is "four hundred fifty-one million, nine hundred seventy-seven thousand, nine hundred sixty-four".