423899975402 has 16 divisors (see below), whose sum is σ = 639694504512. Its totient is φ = 210668621280.

The previous prime is 423899975381. The next prime is 423899975413. The reversal of 423899975402 is 204579998324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9225878 + ... + 9271710.

It is an arithmetic number, because the mean of its divisors is an integer number (39980906532).

Almost surely, 2^423899975402 is an apocalyptic number.

423899975402 is a deficient number, since it is larger than the sum of its proper divisors (215794529110).

423899975402 is a wasteful number, since it uses less digits than its factorization.

423899975402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73693.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 423899975402 in words is "four hundred twenty-three billion, eight hundred ninety-nine million, nine hundred seventy-five thousand, four hundred two".