28018509037 has 16 divisors (see below), whose sum is σ = 29027658880. Its totient is φ = 27023450688.

The previous prime is 28018509023. The next prime is 28018509041. The reversal of 28018509037 is 73090581082.

It is a cyclic number.

It is not a de Polignac number, because 28018509037 - 2⁷ = 28018508909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28018508984 and 28018509002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28018509017) 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, 2544658 + ... + 2555644.

It is an arithmetic number, because the mean of its divisors is an integer number (1814228680).

Almost surely, 2^28018509037 is an apocalyptic number.

It is an amenable number.

28018509037 is a deficient number, since it is larger than the sum of its proper divisors (1009149843).

28018509037 is a wasteful number, since it uses less digits than its factorization.

28018509037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11620.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 28018509037 in words is "twenty-eight billion, eighteen million, five hundred nine thousand, thirty-seven".