23185691376851 has 2 divisors, whose sum is σ = 23185691376852. Its totient is φ = 23185691376850.

The previous prime is 23185691376847. The next prime is 23185691376943. The reversal of 23185691376851 is 15867319658132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23185691376851 - 2² = 23185691376847 is a prime.

It is not a weakly prime, because it can be changed into another prime (23185691336851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11592845688425 + 11592845688426.

It is an arithmetic number, because the mean of its divisors is an integer number (11592845688426).

Almost surely, 2^{23185691376851} is an apocalyptic number.

23185691376851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23185691376851 is an equidigital number, since it uses as much as digits as its factorization.

23185691376851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 65.

The spelling of 23185691376851 in words is "twenty-three trillion, one hundred eighty-five billion, six hundred ninety-one million, three hundred seventy-six thousand, eight hundred fifty-one".