23867849907 has 32 divisors (see below), whose sum is σ = 40843388160. Its totient is φ = 13614456960.

The previous prime is 23867849899. The next prime is 23867849909. The reversal of 23867849907 is 70994876832.

It is not a de Polignac number, because 23867849907 - 2³ = 23867849899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23867849909) 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 31 ways as a sum of consecutive naturals, for example, 2358573 + ... + 2368670.

It is an arithmetic number, because the mean of its divisors is an integer number (1276355880).

Almost surely, 2^23867849907 is an apocalyptic number.

23867849907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

23867849907 is a deficient number, since it is larger than the sum of its proper divisors (16975538253).

23867849907 is a wasteful number, since it uses less digits than its factorization.

23867849907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727280 (or 4727274 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 23867849907 in words is "twenty-three billion, eight hundred sixty-seven million, eight hundred forty-nine thousand, nine hundred seven".