28383620142 has 32 divisors (see below), whose sum is σ = 57361065984. Its totient is φ = 9362340000.

The previous prime is 28383620137. The next prime is 28383620147. The reversal of 28383620142 is 24102638382.

It is an interprime number because it is at equal distance from previous prime (28383620137) and next prime (28383620147).

It is a self number, because there is not a number n which added to its sum of digits gives 28383620142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28383620147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170303 + ... + 1194309.

It is an arithmetic number, because the mean of its divisors is an integer number (1792533312).

Almost surely, 2^28383620142 is an apocalyptic number.

28383620142 is an abundant number, since it is smaller than the sum of its proper divisors (28977445842).

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

28383620142 is a wasteful number, since it uses less digits than its factorization.

28383620142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26064.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 28383620142 in words is "twenty-eight billion, three hundred eighty-three million, six hundred twenty thousand, one hundred forty-two".