21341346258 has 16 divisors (see below), whose sum is σ = 43105294656. Its totient is φ = 7043348400.

The previous prime is 21341346251. The next prime is 21341346277. The reversal of 21341346258 is 85264314312.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21341346251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17607766 + ... + 17608977.

It is an arithmetic number, because the mean of its divisors is an integer number (2694080916).

Almost surely, 2^21341346258 is an apocalyptic number.

21341346258 is an abundant number, since it is smaller than the sum of its proper divisors (21763948398).

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

21341346258 is a wasteful number, since it uses less digits than its factorization.

21341346258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35216849.

The product of its digits is 138240, while the sum is 39.

The spelling of 21341346258 in words is "twenty-one billion, three hundred forty-one million, three hundred forty-six thousand, two hundred fifty-eight".