28345623022 has 16 divisors (see below), whose sum is σ = 42739753680. Its totient is φ = 14099138368.

The previous prime is 28345623011. The next prime is 28345623029. The reversal of 28345623022 is 22032654382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28345623029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560988 + ... + 609424.

It is an arithmetic number, because the mean of its divisors is an integer number (2671234605).

Almost surely, 2^28345623022 is an apocalyptic number.

28345623022 is a deficient number, since it is larger than the sum of its proper divisors (14394130658).

28345623022 is a wasteful number, since it uses less digits than its factorization.

28345623022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49955.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 28345623022 in words is "twenty-eight billion, three hundred forty-five million, six hundred twenty-three thousand, twenty-two".