21414661492 has 36 divisors (see below), whose sum is σ = 45000407424. Its totient is φ = 8881654320.

The previous prime is 21414661481. The next prime is 21414661511. The reversal of 21414661492 is 29416641412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756158 + ... + 1768309.

Almost surely, 2^21414661492 is an apocalyptic number.

It is an amenable number.

21414661492 is an abundant number, since it is smaller than the sum of its proper divisors (23585745932).

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

21414661492 is a wasteful number, since it uses less digits than its factorization.

21414661492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3524516 (or 3524507 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The spelling of 21414661492 in words is "twenty-one billion, four hundred fourteen million, six hundred sixty-one thousand, four hundred ninety-two".