451415432525042 has 4 divisors (see below), whose sum is σ = 677123148787566. Its totient is φ = 225707716262520.

The previous prime is 451415432525023. The next prime is 451415432525047. The reversal of 451415432525042 is 240525234514154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 387370928791081 + 64044503733961 = 19681741^2 + 8002781^2 .

It is not an unprimeable number, because it can be changed into a prime (451415432525047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112853858131259 + ... + 112853858131262.

Almost surely, 2^{451415432525042} is an apocalyptic number.

451415432525042 is a deficient number, since it is larger than the sum of its proper divisors (225707716262524).

451415432525042 is a wasteful number, since it uses less digits than its factorization.

451415432525042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225707716262523.

The product of its (nonzero) digits is 3840000, while the sum is 47.

The spelling of 451415432525042 in words is "four hundred fifty-one trillion, four hundred fifteen billion, four hundred thirty-two million, five hundred twenty-five thousand, forty-two".