28310514084 has 18 divisors (see below), whose sum is σ = 71562688470. Its totient is φ = 9436838016.

The previous prime is 28310514077. The next prime is 28310514139. The reversal of 28310514084 is 48041501382.

It can be written as a sum of positive squares in only one way, i.e., 27003691584 + 1306822500 = 164328^2 + 36150^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 786403169 = 28310514084 / (2 + 8 + 3 + 1 + 0 + 5 + 1 + 4 + 0 + 8 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 393201549 + ... + 393201620.

It is an arithmetic number, because the mean of its divisors is an integer number (3975704915).

Almost surely, 2^28310514084 is an apocalyptic number.

It is an amenable number.

28310514084 is an abundant number, since it is smaller than the sum of its proper divisors (43252174386).

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

28310514084 is a wasteful number, since it uses less digits than its factorization.

28310514084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786403179 (or 786403174 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 28310514084 in words is "twenty-eight billion, three hundred ten million, five hundred fourteen thousand, eighty-four".