28295886942 has 24 divisors (see below), whose sum is σ = 63973310544. Its totient is φ = 9021876864.

The previous prime is 28295886889. The next prime is 28295886943. The reversal of 28295886942 is 24968859282.

28295886942 is a `hidden beast` number, since 2 + 8 + 2 + 9 + 588 + 6 + 9 + 42 = 666.

It is a super-2 number, since 2×28295886942² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28295886942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28295886943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34173363 + ... + 34174190.

It is an arithmetic number, because the mean of its divisors is an integer number (2665554606).

Almost surely, 2^28295886942 is an apocalyptic number.

28295886942 is an abundant number, since it is smaller than the sum of its proper divisors (35677423602).

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

28295886942 is a wasteful number, since it uses less digits than its factorization.

28295886942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68347584 (or 68347581 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 63.

The spelling of 28295886942 in words is "twenty-eight billion, two hundred ninety-five million, eight hundred eighty-six thousand, nine hundred forty-two".