28203212630 has 64 divisors (see below), whose sum is σ = 52773336000. Its totient is φ = 10843227648.

The previous prime is 28203212603. The next prime is 28203212659. The reversal of 28203212630 is 3621230282.

It is a junction number, because it is equal to n+sod(n) for n = 28203212593 and 28203212602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16897436 + ... + 16899104.

It is an arithmetic number, because the mean of its divisors is an integer number (824583375).

Almost surely, 2^28203212630 is an apocalyptic number.

28203212630 is a deficient number, since it is larger than the sum of its proper divisors (24570123370).

28203212630 is a wasteful number, since it uses less digits than its factorization.

28203212630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 28203212630 in words is "twenty-eight billion, two hundred three million, two hundred twelve thousand, six hundred thirty".