21340417210 has 64 divisors (see below), whose sum is σ = 44872289280. Its totient is φ = 7154979840.

The previous prime is 21340417201. The next prime is 21340417223. The reversal of 21340417210 is 1271404312.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5660206 + ... + 5663974.

It is an arithmetic number, because the mean of its divisors is an integer number (701129520).

Almost surely, 2^21340417210 is an apocalyptic number.

21340417210 is an abundant number, since it is smaller than the sum of its proper divisors (23531872070).

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

21340417210 is a wasteful number, since it uses less digits than its factorization.

21340417210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

The product of its (nonzero) digits is 1344, while the sum is 25.

The spelling of 21340417210 in words is "twenty-one billion, three hundred forty million, four hundred seventeen thousand, two hundred ten".