634217026323 has 16 divisors (see below), whose sum is σ = 855034966016. Its totient is φ = 418112305920.

The previous prime is 634217026309. The next prime is 634217026327. The reversal of 634217026323 is 323620712436.

634217026323 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 634217026323 - 2⁶ = 634217026259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (634217026327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527011 + ... + 1243452.

It is an arithmetic number, because the mean of its divisors is an integer number (53439685376).

Almost surely, 2^634217026323 is an apocalyptic number.

634217026323 is a deficient number, since it is larger than the sum of its proper divisors (220817939693).

634217026323 is a wasteful number, since it uses less digits than its factorization.

634217026323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771794.

The product of its (nonzero) digits is 217728, while the sum is 39.

Adding to 634217026323 its reverse (323620712436), we get a palindrome (957837738759).

The spelling of 634217026323 in words is "six hundred thirty-four billion, two hundred seventeen million, twenty-six thousand, three hundred twenty-three".