423508538499 has 8 divisors (see below), whose sum is σ = 564681514320. Its totient is φ = 282337294176.

The previous prime is 423508538471. The next prime is 423508538513. The reversal of 423508538499 is 994835805324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-423508538499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423508538429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329809 + ... + 977645.

It is an arithmetic number, because the mean of its divisors is an integer number (70585189290).

Almost surely, 2^423508538499 is an apocalyptic number.

423508538499 is a deficient number, since it is larger than the sum of its proper divisors (141172975821).

423508538499 is a wasteful number, since it uses less digits than its factorization.

423508538499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865749.

The product of its (nonzero) digits is 37324800, while the sum is 60.

The spelling of 423508538499 in words is "four hundred twenty-three billion, five hundred eight million, five hundred thirty-eight thousand, four hundred ninety-nine".