28013050265140 has 24 divisors (see below), whose sum is σ = 61385118842880. Its totient is φ = 10718036623008.

The previous prime is 28013050265131. The next prime is 28013050265147. The reversal of 28013050265140 is 4156205031082.

It is a self number, because there is not a number n which added to its sum of digits gives 28013050265140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28013050265147) 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, 30448967220 + ... + 30448968139.

It is an arithmetic number, because the mean of its divisors is an integer number (2557713285120).

Almost surely, 2^{28013050265140} is an apocalyptic number.

28013050265140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28013050265140 is an abundant number, since it is smaller than the sum of its proper divisors (33372068577740).

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

28013050265140 is a wasteful number, since it uses less digits than its factorization.

28013050265140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60897935391 (or 60897935389 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 28013050265140 in words is "twenty-eight trillion, thirteen billion, fifty million, two hundred sixty-five thousand, one hundred forty".