28818682045837 has 16 divisors (see below), whose sum is σ = 29978172932400. Its totient is φ = 27670376581120.

The previous prime is 28818682045831. The next prime is 28818682045841. The reversal of 28818682045837 is 73854028681882.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 27097768996 + 28791584276841 = 164614^2 + 5365779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28818682045837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28818682045831) 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, 10676739 + ... + 13100767.

It is an arithmetic number, because the mean of its divisors is an integer number (1873635808275).

Almost surely, 2^{28818682045837} is an apocalyptic number.

It is an amenable number.

28818682045837 is a deficient number, since it is larger than the sum of its proper divisors (1159490886563).

28818682045837 is a wasteful number, since it uses less digits than its factorization.

28818682045837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426336.

The product of its (nonzero) digits is 330301440, while the sum is 70.

The spelling of 28818682045837 in words is "twenty-eight trillion, eight hundred eighteen billion, six hundred eighty-two million, forty-five thousand, eight hundred thirty-seven".