21410577863 has 4 divisors (see below), whose sum is σ = 21512050008. Its totient is φ = 21309105720.

The previous prime is 21410577841. The next prime is 21410577871. The reversal of 21410577863 is 36877501412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21410577863 - 2¹⁴ = 21410561479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21410577803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50735756 + ... + 50736177.

It is an arithmetic number, because the mean of its divisors is an integer number (5378012502).

Almost surely, 2^21410577863 is an apocalyptic number.

21410577863 is a deficient number, since it is larger than the sum of its proper divisors (101472145).

21410577863 is a wasteful number, since it uses less digits than its factorization.

21410577863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101472144.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 21410577863 in words is "twenty-one billion, four hundred ten million, five hundred seventy-seven thousand, eight hundred sixty-three".