28135039263 has 32 divisors (see below), whose sum is σ = 38207769600. Its totient is φ = 18413346816.

The previous prime is 28135039259. The next prime is 28135039313. The reversal of 28135039263 is 36293053182.

It is not a de Polignac number, because 28135039263 - 2² = 28135039259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28135035263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36586143 + ... + 36586911.

It is an arithmetic number, because the mean of its divisors is an integer number (1193992800).

Almost surely, 2^28135039263 is an apocalyptic number.

28135039263 is a deficient number, since it is larger than the sum of its proper divisors (10072730337).

28135039263 is a wasteful number, since it uses less digits than its factorization.

28135039263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 233280, while the sum is 42.

The spelling of 28135039263 in words is "twenty-eight billion, one hundred thirty-five million, thirty-nine thousand, two hundred sixty-three".