214999821528 has 16 divisors (see below), whose sum is σ = 537499553880. Its totient is φ = 71666607168.

The previous prime is 214999821499. The next prime is 214999821541. The reversal of 214999821528 is 825128999412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4479162925 + ... + 4479162972.

Almost surely, 2^214999821528 is an apocalyptic number.

It is an amenable number.

214999821528 is an abundant number, since it is smaller than the sum of its proper divisors (322499732352).

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

214999821528 is a wasteful number, since it uses less digits than its factorization.

214999821528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958325906 (or 8958325902 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 60.

The spelling of 214999821528 in words is "two hundred fourteen billion, nine hundred ninety-nine million, eight hundred twenty-one thousand, five hundred twenty-eight".