21346063900 has 36 divisors (see below), whose sum is σ = 52938240208. Its totient is φ = 7318650240.

The previous prime is 21346063847. The next prime is 21346063909. The reversal of 21346063900 is 936064312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21346063909) 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, 15246489 + ... + 15247888.

Almost surely, 2^21346063900 is an apocalyptic number.

21346063900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21346063900 is an abundant number, since it is smaller than the sum of its proper divisors (31592176308).

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

21346063900 is a wasteful number, since it uses less digits than its factorization.

21346063900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30494398 (or 30494391 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 21346063900 in words is "twenty-one billion, three hundred forty-six million, sixty-three thousand, nine hundred".