23357737129 has 4 divisors (see below), whose sum is σ = 24731721684. Its totient is φ = 21983752576.

The previous prime is 23357737087. The next prime is 23357737133. The reversal of 23357737129 is 92173775332.

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 17634512025 + 5723225104 = 132795^2 + 75652^2 .

It is a cyclic number.

It is not a de Polignac number, because 23357737129 - 2¹⁹ = 23357212841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23357737159) 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, 686992252 + ... + 686992285.

It is an arithmetic number, because the mean of its divisors is an integer number (6182930421).

Almost surely, 2^23357737129 is an apocalyptic number.

It is an amenable number.

23357737129 is a deficient number, since it is larger than the sum of its proper divisors (1373984555).

23357737129 is a wasteful number, since it uses less digits than its factorization.

23357737129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373984554.

The product of its digits is 1666980, while the sum is 49.

The spelling of 23357737129 in words is "twenty-three billion, three hundred fifty-seven million, seven hundred thirty-seven thousand, one hundred twenty-nine".