451404040402 has 16 divisors (see below), whose sum is σ = 778469247360. Its totient is φ = 192300437088.

The previous prime is 451404040393. The next prime is 451404040427. The reversal of 451404040402 is 204040404154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96534027 + ... + 96538702.

It is an arithmetic number, because the mean of its divisors is an integer number (48654327960).

Almost surely, 2^451404040402 is an apocalyptic number.

451404040402 is a deficient number, since it is larger than the sum of its proper divisors (327065206958).

451404040402 is a wasteful number, since it uses less digits than its factorization.

451404040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193072905.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 451404040402 its reverse (204040404154), we get a palindrome (655444444556).

The spelling of 451404040402 in words is "four hundred fifty-one billion, four hundred four million, forty thousand, four hundred two".