423212188450 has 24 divisors (see below), whose sum is σ = 787209864228. Its totient is φ = 169277306880.

The previous prime is 423212188439. The next prime is 423212188493. The reversal of 423212188450 is 54881212324.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 11742539769 + 411469648681 = 108363^2 + 641459^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016374 + ... + 1370926.

Almost surely, 2^423212188450 is an apocalyptic number.

423212188450 is a deficient number, since it is larger than the sum of its proper divisors (363997675778).

423212188450 is a wasteful number, since it uses less digits than its factorization.

423212188450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378438 (or 378433 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 423212188450 in words is "four hundred twenty-three billion, two hundred twelve million, one hundred eighty-eight thousand, four hundred fifty".