23261339407687 has 2 divisors, whose sum is σ = 23261339407688. Its totient is φ = 23261339407686.

The previous prime is 23261339407667. The next prime is 23261339407751. The reversal of 23261339407687 is 78670493316232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23261339407687 - 2¹⁵ = 23261339374919 is a prime.

It is a super-2 number, since 2×23261339407687² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23261339407667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11630669703843 + 11630669703844.

It is an arithmetic number, because the mean of its divisors is an integer number (11630669703844).

Almost surely, 2^{23261339407687} is an apocalyptic number.

23261339407687 is a deficient number, since it is larger than the sum of its proper divisors (1).

23261339407687 is an equidigital number, since it uses as much as digits as its factorization.

23261339407687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54867456, while the sum is 61.

The spelling of 23261339407687 in words is "twenty-three trillion, two hundred sixty-one billion, three hundred thirty-nine million, four hundred seven thousand, six hundred eighty-seven".