21900769700 has 36 divisors (see below), whose sum is σ = 47531093232. Its totient is φ = 8759124000.

The previous prime is 21900769697. The next prime is 21900769703. The reversal of 21900769700 is 796700912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21900769697) and next prime (21900769703).

It is not an unprimeable number, because it can be changed into a prime (21900769703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467275 + ... + 1482125.

Almost surely, 2^21900769700 is an apocalyptic number.

21900769700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21900769700 is an abundant number, since it is smaller than the sum of its proper divisors (25630323532).

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

21900769700 is a wasteful number, since it uses less digits than its factorization.

21900769700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29612 (or 29605 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 41.

The spelling of 21900769700 in words is "twenty-one billion, nine hundred million, seven hundred sixty-nine thousand, seven hundred".