423542136501 has 12 divisors (see below), whose sum is σ = 667399730400. Its totient is φ = 256692203880.

The previous prime is 423542136497. The next prime is 423542136517. The reversal of 423542136501 is 105631245324.

423542136501 is a `hidden beast` number, since 42 + 3 + 542 + 13 + 65 + 0 + 1 = 666.

It is not a de Polignac number, because 423542136501 - 2² = 423542136497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423542136571) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2139101601 + ... + 2139101798.

It is an arithmetic number, because the mean of its divisors is an integer number (55616644200).

Almost surely, 2^423542136501 is an apocalyptic number.

It is an amenable number.

423542136501 is a deficient number, since it is larger than the sum of its proper divisors (243857593899).

423542136501 is a wasteful number, since it uses less digits than its factorization.

423542136501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278203416 (or 4278203413 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 423542136501 in words is "four hundred twenty-three billion, five hundred forty-two million, one hundred thirty-six thousand, five hundred one".