23828820737 has 4 divisors (see below), whose sum is σ = 23861066160. Its totient is φ = 23796575316.

The previous prime is 23828820733. The next prime is 23828820787. The reversal of 23828820737 is 73702882832.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23828820737 - 2² = 23828820733 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23828820731) 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, 16121603 + ... + 16123080.

It is an arithmetic number, because the mean of its divisors is an integer number (5965266540).

Almost surely, 2^23828820737 is an apocalyptic number.

It is an amenable number.

23828820737 is a deficient number, since it is larger than the sum of its proper divisors (32245423).

23828820737 is an equidigital number, since it uses as much as digits as its factorization.

23828820737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32245422.

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 23828820737 in words is "twenty-three billion, eight hundred twenty-eight million, eight hundred twenty thousand, seven hundred thirty-seven".