23234621344637 has 4 divisors (see below), whose sum is σ = 23279217547356. Its totient is φ = 23190025141920.

The previous prime is 23234621344631. The next prime is 23234621344709. The reversal of 23234621344637 is 73644312643232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2850353513401 + 20384267831236 = 1688299^2 + 4514894^2 .

It is a cyclic number.

It is not a de Polignac number, because 23234621344637 - 2⁶ = 23234621344573 is a prime.

It is a super-2 number, since 2×23234621344637² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23234621344631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22298100578 + ... + 22298101619.

It is an arithmetic number, because the mean of its divisors is an integer number (5819804386839).

Almost surely, 2^{23234621344637} is an apocalyptic number.

It is an amenable number.

23234621344637 is a deficient number, since it is larger than the sum of its proper divisors (44596202719).

23234621344637 is an equidigital number, since it uses as much as digits as its factorization.

23234621344637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44596202718.

The product of its digits is 10450944, while the sum is 50.

Adding to 23234621344637 its reverse (73644312643232), we get a palindrome (96878933987869).

The spelling of 23234621344637 in words is "twenty-three trillion, two hundred thirty-four billion, six hundred twenty-one million, three hundred forty-four thousand, six hundred thirty-seven".