23437466649 has 9 divisors (see below), whose sum is σ = 33854781909. Its totient is φ = 15624671580.

The previous prime is 23437466597. The next prime is 23437466677. The reversal of 23437466649 is 94666473432.

The square root of 23437466649 is 153093.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 23437466649 - 2⁹ = 23437466137 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23437466595 and 23437466604.

It is not an unprimeable number, because it can be changed into a prime (23437466149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 433764 + ... + 484794.

Almost surely, 2^23437466649 is an apocalyptic number.

23437466649 is the 153093-rd square number.

23437466649 is the 76547-th centered octagonal number.

It is an amenable number.

23437466649 is a deficient number, since it is larger than the sum of its proper divisors (10417315260).

23437466649 is an frugal number, since it uses more digits than its factorization.

23437466649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102068 (or 51034 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 54.

The spelling of 23437466649 in words is "twenty-three billion, four hundred thirty-seven million, four hundred sixty-six thousand, six hundred forty-nine".