23355685693 has 2 divisors, whose sum is σ = 23355685694. Its totient is φ = 23355685692.

The previous prime is 23355685679. The next prime is 23355685729. The reversal of 23355685693 is 39658655332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21386722564 + 1968963129 = 146242^2 + 44373^2 .

It is a cyclic number.

It is not a de Polignac number, because 23355685693 - 2³³ = 14765751101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23355685193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11677842846 + 11677842847.

It is an arithmetic number, because the mean of its divisors is an integer number (11677842847).

Almost surely, 2^23355685693 is an apocalyptic number.

It is an amenable number.

23355685693 is a deficient number, since it is larger than the sum of its proper divisors (1).

23355685693 is an equidigital number, since it uses as much as digits as its factorization.

23355685693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496000, while the sum is 55.

The spelling of 23355685693 in words is "twenty-three billion, three hundred fifty-five million, six hundred eighty-five thousand, six hundred ninety-three".