206835281628 has 24 divisors (see below), whose sum is σ = 482624153088. Its totient is φ = 68943880176.

The previous prime is 206835281579. The next prime is 206835281657. The reversal of 206835281628 is 826182538602.

It is a super-2 number, since 2×206835281628² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794325 + ... + 1022067.

It is an arithmetic number, because the mean of its divisors is an integer number (20109339712).

Almost surely, 2^206835281628 is an apocalyptic number.

It is an amenable number.

206835281628 is an abundant number, since it is smaller than the sum of its proper divisors (275788871460).

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

206835281628 is a wasteful number, since it uses less digits than its factorization.

206835281628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303433 (or 303431 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 206835281628 in words is "two hundred six billion, eight hundred thirty-five million, two hundred eighty-one thousand, six hundred twenty-eight".