423511631640255 has 32 divisors (see below), whose sum is σ = 718236162388224. Its totient is φ = 212361746786816.

The previous prime is 423511631640233. The next prime is 423511631640263. The reversal of 423511631640255 is 552046136115324.

It is a happy number.

It is not a de Polignac number, because 423511631640255 - 2⁶ = 423511631640191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 876648657 + ... + 877131626.

It is an arithmetic number, because the mean of its divisors is an integer number (22444880074632).

Almost surely, 2^{423511631640255} is an apocalyptic number.

423511631640255 is a deficient number, since it is larger than the sum of its proper divisors (294724530747969).

423511631640255 is a wasteful number, since it uses less digits than its factorization.

423511631640255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753781255.

The product of its (nonzero) digits is 2592000, while the sum is 48.

Adding to 423511631640255 its reverse (552046136115324), we get a palindrome (975557767755579).

The spelling of 423511631640255 in words is "four hundred twenty-three trillion, five hundred eleven billion, six hundred thirty-one million, six hundred forty thousand, two hundred fifty-five".