28311522022 has 8 divisors (see below), whose sum is σ = 48534037776. Its totient is φ = 12133509432.

The previous prime is 28311521939. The next prime is 28311522047. The reversal of 28311522022 is 22022511382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011125773 + ... + 1011125800.

It is an arithmetic number, because the mean of its divisors is an integer number (6066754722).

Almost surely, 2^28311522022 is an apocalyptic number.

28311522022 is a deficient number, since it is larger than the sum of its proper divisors (20222515754).

28311522022 is a wasteful number, since it uses less digits than its factorization.

28311522022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022251582.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 28311522022 in words is "twenty-eight billion, three hundred eleven million, five hundred twenty-two thousand, twenty-two".