450723001291690 has 32 divisors (see below), whose sum is σ = 814798169317440. Its totient is φ = 179513373642624.

The previous prime is 450723001291571. The next prime is 450723001291709. The reversal of 450723001291690 is 96192100327054.

It is a super-2 number, since 2×450723001291690² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 74102260 + ... + 79953679.

It is an arithmetic number, because the mean of its divisors is an integer number (25462442791170).

Almost surely, 2^{450723001291690} is an apocalyptic number.

450723001291690 is a deficient number, since it is larger than the sum of its proper divisors (364075168025750).

450723001291690 is a wasteful number, since it uses less digits than its factorization.

450723001291690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154057206.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 450723001291690 in words is "four hundred fifty trillion, seven hundred twenty-three billion, one million, two hundred ninety-one thousand, six hundred ninety".