451351983649 has 8 divisors (see below), whose sum is σ = 515902173248. Its totient is φ = 386819627760.

The previous prime is 451351983631. The next prime is 451351983653. The reversal of 451351983649 is 946389153154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 451351983649 - 2³⁷ = 313913030177 is a prime.

It is a super-2 number, since 2×451351983649² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 451351983593 and 451351983602.

It is not an unprimeable number, because it can be changed into a prime (451351983689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4404147 + ... + 4505464.

It is an arithmetic number, because the mean of its divisors is an integer number (64487771656).

Almost surely, 2^451351983649 is an apocalyptic number.

It is an amenable number.

451351983649 is a deficient number, since it is larger than the sum of its proper divisors (64550189599).

451351983649 is an equidigital number, since it uses as much as digits as its factorization.

451351983649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8916855.

The product of its digits is 13996800, while the sum is 58.

The spelling of 451351983649 in words is "four hundred fifty-one billion, three hundred fifty-one million, nine hundred eighty-three thousand, six hundred forty-nine".