23209601499 has 48 divisors (see below), whose sum is σ = 39824209152. Its totient is φ = 12748601664.

The previous prime is 23209601497. The next prime is 23209601533. The reversal of 23209601499 is 99410690232.

It is a happy number.

23209601499 is a `hidden beast` number, since 2 + 32 + 0 + 9 + 601 + 4 + 9 + 9 = 666.

It is not a de Polignac number, because 23209601499 - 2¹ = 23209601497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23209601491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 133492 + ... + 253454.

It is an arithmetic number, because the mean of its divisors is an integer number (829671024).

Almost surely, 2^23209601499 is an apocalyptic number.

23209601499 is a deficient number, since it is larger than the sum of its proper divisors (16614607653).

23209601499 is a wasteful number, since it uses less digits than its factorization.

23209601499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120096 (or 120093 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 23209601499 in words is "twenty-three billion, two hundred nine million, six hundred one thousand, four hundred ninety-nine".