23969509877 has 4 divisors (see below), whose sum is σ = 24193524096. Its totient is φ = 23745495660.

The previous prime is 23969509871. The next prime is 23969509891. The reversal of 23969509877 is 77890596932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23969509877 - 2⁶ = 23969509813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23969509871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112006949 + ... + 112007162.

It is an arithmetic number, because the mean of its divisors is an integer number (6048381024).

Almost surely, 2^23969509877 is an apocalyptic number.

It is an amenable number.

23969509877 is a deficient number, since it is larger than the sum of its proper divisors (224014219).

23969509877 is a wasteful number, since it uses less digits than its factorization.

23969509877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224014218.

The product of its (nonzero) digits is 51438240, while the sum is 65.

The spelling of 23969509877 in words is "twenty-three billion, nine hundred sixty-nine million, five hundred nine thousand, eight hundred seventy-seven".