23182211807851 has 4 divisors (see below), whose sum is σ = 23255341813872. Its totient is φ = 23109081801832.

The previous prime is 23182211807801. The next prime is 23182211807869. The reversal of 23182211807851 is 15870811228132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23182211807851 - 2¹⁵ = 23182211775083 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23182211807795 and 23182211807804.

It is not an unprimeable number, because it can be changed into a prime (23182211807801) 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, 36565002535 + ... + 36565003168.

It is an arithmetic number, because the mean of its divisors is an integer number (5813835453468).

Almost surely, 2^{23182211807851} is an apocalyptic number.

23182211807851 is a deficient number, since it is larger than the sum of its proper divisors (73130006021).

23182211807851 is an equidigital number, since it uses as much as digits as its factorization.

23182211807851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73130006020.

The product of its (nonzero) digits is 430080, while the sum is 49.

The spelling of 23182211807851 in words is "twenty-three trillion, one hundred eighty-two billion, two hundred eleven million, eight hundred seven thousand, eight hundred fifty-one".