23092987866 has 128 divisors (see below), whose sum is σ = 53754624000. Its totient is φ = 6554048256.

The previous prime is 23092987861. The next prime is 23092987871. The reversal of 23092987866 is 66878929032.

It is an interprime number because it is at equal distance from previous prime (23092987861) and next prime (23092987871).

It is not an unprimeable number, because it can be changed into a prime (23092987861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9529531 + ... + 9531953.

It is an arithmetic number, because the mean of its divisors is an integer number (419958000).

Almost surely, 2^23092987866 is an apocalyptic number.

23092987866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23092987866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26877312000).

23092987866 is an abundant number, since it is smaller than the sum of its proper divisors (30661636134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23092987866 is a wasteful number, since it uses less digits than its factorization.

23092987866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 23092987866 in words is "twenty-three billion, ninety-two million, nine hundred eighty-seven thousand, eight hundred sixty-six".