23871267049 has 4 divisors (see below), whose sum is σ = 27281448064. Its totient is φ = 20461086036.

The previous prime is 23871266983. The next prime is 23871267083. The reversal of 23871267049 is 94076217832.

It is a happy number.

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 23871267049 - 2⁷ = 23871266921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23871266993 and 23871267011.

It is not an unprimeable number, because it can be changed into a prime (23871267149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705090497 + ... + 1705090510.

It is an arithmetic number, because the mean of its divisors is an integer number (6820362016).

Almost surely, 2^23871267049 is an apocalyptic number.

It is an amenable number.

23871267049 is a deficient number, since it is larger than the sum of its proper divisors (3410181015).

23871267049 is an equidigital number, since it uses as much as digits as its factorization.

23871267049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410181014.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 23871267049 in words is "twenty-three billion, eight hundred seventy-one million, two hundred sixty-seven thousand, forty-nine".