451399104136 has 8 divisors (see below), whose sum is σ = 846373320270. Its totient is φ = 225699552064.

The previous prime is 451399104097. The next prime is 451399104139. The reversal of 451399104136 is 631401993154.

It can be written as a sum of positive squares in only one way, i.e., 329602292100 + 121796812036 = 574110^2 + 348994^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×451399104136² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451399104139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28212444001 + ... + 28212444016.

Almost surely, 2^451399104136 is an apocalyptic number.

It is an amenable number.

451399104136 is a deficient number, since it is larger than the sum of its proper divisors (394974216134).

451399104136 is a wasteful number, since it uses less digits than its factorization.

451399104136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56424888023 (or 56424888019 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 451399104136 in words is "four hundred fifty-one billion, three hundred ninety-nine million, one hundred four thousand, one hundred thirty-six".