23485921951 has 2 divisors, whose sum is σ = 23485921952. Its totient is φ = 23485921950.

The previous prime is 23485921903. The next prime is 23485921961. The reversal of 23485921951 is 15912958432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23485921951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23485921895 and 23485921904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23485921961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11742960975 + 11742960976.

It is an arithmetic number, because the mean of its divisors is an integer number (11742960976).

Almost surely, 2^23485921951 is an apocalyptic number.

23485921951 is a deficient number, since it is larger than the sum of its proper divisors (1).

23485921951 is an equidigital number, since it uses as much as digits as its factorization.

23485921951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 49.

The spelling of 23485921951 in words is "twenty-three billion, four hundred eighty-five million, nine hundred twenty-one thousand, nine hundred fifty-one".