21112677080 has 32 divisors (see below), whose sum is σ = 51822026640. Its totient is φ = 7677336960.

The previous prime is 21112677067. The next prime is 21112677119. The reversal of 21112677080 is 8077621112.

It is a self number, because there is not a number n which added to its sum of digits gives 21112677080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23991239 + ... + 23992118.

Almost surely, 2^21112677080 is an apocalyptic number.

21112677080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21112677080 is an abundant number, since it is smaller than the sum of its proper divisors (30709349560).

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

21112677080 is a wasteful number, since it uses less digits than its factorization.

21112677080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47983379 (or 47983375 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 21112677080 in words is "twenty-one billion, one hundred twelve million, six hundred seventy-seven thousand, eighty".