23387009449 has 8 divisors (see below), whose sum is σ = 23703857928. Its totient is φ = 23071833600.

The previous prime is 23387009447. The next prime is 23387009461. The reversal of 23387009449 is 94490078332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 325549849 + 23061459600 = 18043^2 + 151860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23387009449 - 2¹ = 23387009447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23387009447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389992 + ... + 445945.

It is an arithmetic number, because the mean of its divisors is an integer number (2962982241).

Almost surely, 2^23387009449 is an apocalyptic number.

It is an amenable number.

23387009449 is a deficient number, since it is larger than the sum of its proper divisors (316848479).

23387009449 is a wasteful number, since it uses less digits than its factorization.

23387009449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836315.

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 23387009449 in words is "twenty-three billion, three hundred eighty-seven million, nine thousand, four hundred forty-nine".