28210082836 has 12 divisors (see below), whose sum is σ = 53165156212. Its totient is φ = 13020038208.

The previous prime is 28210082783. The next prime is 28210082837. The reversal of 28210082836 is 63828001282.

It can be written as a sum of positive squares in 2 ways, for example, as 4062787600 + 24147295236 = 63740^2 + 155394^2 .

It is a super-2 number, since 2×28210082836² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28210082837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271250745 + ... + 271250848.

Almost surely, 2^28210082836 is an apocalyptic number.

28210082836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28210082836 is a deficient number, since it is larger than the sum of its proper divisors (24955073376).

28210082836 is a wasteful number, since it uses less digits than its factorization.

28210082836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542501610 (or 542501608 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 28210082836 in words is "twenty-eight billion, two hundred ten million, eighty-two thousand, eight hundred thirty-six".