28567738051 has 4 divisors (see below), whose sum is σ = 28569569112. Its totient is φ = 28565906992.

The previous prime is 28567738039. The next prime is 28567738063. The reversal of 28567738051 is 15083776582.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28567738039) and next prime (28567738063).

It is a cyclic number.

It is not a de Polignac number, because 28567738051 - 2²³ = 28559349443 is a prime.

It is a super-2 number, since 2×28567738051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28567738051.

It is not an unprimeable number, because it can be changed into a prime (28567738091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891925 + ... + 923398.

It is an arithmetic number, because the mean of its divisors is an integer number (7142392278).

Almost surely, 2^28567738051 is an apocalyptic number.

28567738051 is a deficient number, since it is larger than the sum of its proper divisors (1831061).

28567738051 is a wasteful number, since it uses less digits than its factorization.

28567738051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831060.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 28567738051 in words is "twenty-eight billion, five hundred sixty-seven million, seven hundred thirty-eight thousand, fifty-one".