21876276268 has 48 divisors (see below), whose sum is σ = 47754330624. Its totient is φ = 8518890240.

The previous prime is 21876276263. The next prime is 21876276269. The reversal of 21876276268 is 86267267812.

It is not an unprimeable number, because it can be changed into a prime (21876276263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 625780 + ... + 659812.

It is an arithmetic number, because the mean of its divisors is an integer number (994881888).

Almost surely, 2^21876276268 is an apocalyptic number.

21876276268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

21876276268 is an abundant number, since it is smaller than the sum of its proper divisors (25878054356).

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

21876276268 is a wasteful number, since it uses less digits than its factorization.

21876276268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36142 (or 36140 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The spelling of 21876276268 in words is "twenty-one billion, eight hundred seventy-six million, two hundred seventy-six thousand, two hundred sixty-eight".