23530149469 has 2 divisors, whose sum is σ = 23530149470. Its totient is φ = 23530149468.

The previous prime is 23530149413. The next prime is 23530149481. The reversal of 23530149469 is 96494103532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21336444900 + 2193704569 = 146070^2 + 46837^2 .

It is a cyclic number.

It is not a de Polignac number, because 23530149469 - 2⁷ = 23530149341 is a prime.

It is a super-2 number, since 2×23530149469² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23530149869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11765074734 + 11765074735.

It is an arithmetic number, because the mean of its divisors is an integer number (11765074735).

Almost surely, 2^23530149469 is an apocalyptic number.

It is an amenable number.

23530149469 is a deficient number, since it is larger than the sum of its proper divisors (1).

23530149469 is an equidigital number, since it uses as much as digits as its factorization.

23530149469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 23530149469 in words is "twenty-three billion, five hundred thirty million, one hundred forty-nine thousand, four hundred sixty-nine".