28235651862 has 32 divisors (see below), whose sum is σ = 63270065664. Its totient is φ = 8325007200.

The previous prime is 28235651839. The next prime is 28235651867. The reversal of 28235651862 is 26815653282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28235651867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5778814 + ... + 5783697.

It is an arithmetic number, because the mean of its divisors is an integer number (1977189552).

Almost surely, 2^28235651862 is an apocalyptic number.

28235651862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28235651862 is an abundant number, since it is smaller than the sum of its proper divisors (35034413802).

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

28235651862 is a wasteful number, since it uses less digits than its factorization.

28235651862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11562564.

The product of its digits is 1382400, while the sum is 48.

The spelling of 28235651862 in words is "twenty-eight billion, two hundred thirty-five million, six hundred fifty-one thousand, eight hundred sixty-two".