451513442757 has 32 divisors (see below), whose sum is σ = 654329065600. Its totient is φ = 275292276480.

The previous prime is 451513442749. The next prime is 451513442791. The reversal of 451513442757 is 757244315154.

It is a happy number.

It is not a de Polignac number, because 451513442757 - 2³ = 451513442749 is a prime.

It is a super-2 number, since 2×451513442757² (a number of 24 digits) contains 22 as substring.

It is the 671948-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451513442747) by changing a digit.

It is a nontrivial repunit in base 671947.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2031282 + ... + 2242572.

It is an arithmetic number, because the mean of its divisors is an integer number (20447783300).

Almost surely, 2^451513442757 is an apocalyptic number.

It is an amenable number.

451513442757 is a deficient number, since it is larger than the sum of its proper divisors (202815622843).

451513442757 is a wasteful number, since it uses less digits than its factorization.

451513442757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211813.

The product of its digits is 2352000, while the sum is 48.

The spelling of 451513442757 in words is "four hundred fifty-one billion, five hundred thirteen million, four hundred forty-two thousand, seven hundred fifty-seven".