28578539022 has 32 divisors (see below), whose sum is σ = 62669718144. Its totient is φ = 8616199200.

The previous prime is 28578539021. The next prime is 28578539083. The reversal of 28578539022 is 22093587582.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28578539021) 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 15 ways as a sum of consecutive naturals, for example, 1086004 + ... + 1112007.

It is an arithmetic number, because the mean of its divisors is an integer number (1958428692).

Almost surely, 2^28578539022 is an apocalyptic number.

28578539022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28578539022 is an abundant number, since it is smaller than the sum of its proper divisors (34091179122).

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

28578539022 is a wasteful number, since it uses less digits than its factorization.

28578539022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198224.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 28578539022 in words is "twenty-eight billion, five hundred seventy-eight million, five hundred thirty-nine thousand, twenty-two".