23355641497 has 2 divisors, whose sum is σ = 23355641498. Its totient is φ = 23355641496.

The previous prime is 23355641489. The next prime is 23355641537. The reversal of 23355641497 is 79414655332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23145362496 + 210279001 = 152136^2 + 14501^2 .

It is a cyclic number.

It is not a de Polignac number, because 23355641497 - 2³ = 23355641489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23355641497.

It is not a weakly prime, because it can be changed into another prime (23355641597) 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, 11677820748 + 11677820749.

It is an arithmetic number, because the mean of its divisors is an integer number (11677820749).

Almost surely, 2^23355641497 is an apocalyptic number.

It is an amenable number.

23355641497 is a deficient number, since it is larger than the sum of its proper divisors (1).

23355641497 is an equidigital number, since it uses as much as digits as its factorization.

23355641497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2721600, while the sum is 49.

The spelling of 23355641497 in words is "twenty-three billion, three hundred fifty-five million, six hundred forty-one thousand, four hundred ninety-seven".