23687391347 has 2 divisors, whose sum is σ = 23687391348. Its totient is φ = 23687391346.

The previous prime is 23687391263. The next prime is 23687391361. The reversal of 23687391347 is 74319378632.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23687391347 - 2²⁴ = 23670614131 is a prime.

It is a super-2 number, since 2×23687391347² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23687390347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11843695673 + 11843695674.

It is an arithmetic number, because the mean of its divisors is an integer number (11843695674).

Almost surely, 2^23687391347 is an apocalyptic number.

23687391347 is a deficient number, since it is larger than the sum of its proper divisors (1).

23687391347 is an equidigital number, since it uses as much as digits as its factorization.

23687391347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 53.

The spelling of 23687391347 in words is "twenty-three billion, six hundred eighty-seven million, three hundred ninety-one thousand, three hundred forty-seven".