21990593014 has 16 divisors (see below), whose sum is σ = 35525978208. Its totient is φ = 10148729472.

The previous prime is 21990593011. The next prime is 21990593041. The reversal of 21990593014 is 41039509912.

It is a super-2 number, since 2×21990593014² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21990593011) 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, 451519 + ... + 497845.

It is an arithmetic number, because the mean of its divisors is an integer number (2220373638).

Almost surely, 2^21990593014 is an apocalyptic number.

21990593014 is a deficient number, since it is larger than the sum of its proper divisors (13535385194).

21990593014 is a wasteful number, since it uses less digits than its factorization.

21990593014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64599.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 21990593014 in words is "twenty-one billion, nine hundred ninety million, five hundred ninety-three thousand, fourteen".