28107557522 has 16 divisors (see below), whose sum is σ = 46862001792. Its totient is φ = 12535102320.

The previous prime is 28107557441. The next prime is 28107557539. The reversal of 28107557522 is 22575570182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12051818 + ... + 12054149.

It is an arithmetic number, because the mean of its divisors is an integer number (2928875112).

Almost surely, 2^28107557522 is an apocalyptic number.

28107557522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28107557522 is a deficient number, since it is larger than the sum of its proper divisors (18754444270).

28107557522 is a wasteful number, since it uses less digits than its factorization.

28107557522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24106033.

The product of its (nonzero) digits is 392000, while the sum is 44.

The spelling of 28107557522 in words is "twenty-eight billion, one hundred seven million, five hundred fifty-seven thousand, five hundred twenty-two".