28687514051 has 8 divisors (see below), whose sum is σ = 32787124224. Its totient is φ = 24588252360.

The previous prime is 28687514039. The next prime is 28687514057. The reversal of 28687514051 is 15041578682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28687514051 - 2¹⁰ = 28687513027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28687513987 and 28687514005.

It is not an unprimeable number, because it can be changed into a prime (28687514057) 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, 123116 + ... + 269318.

It is an arithmetic number, because the mean of its divisors is an integer number (4098390528).

Almost surely, 2^28687514051 is an apocalyptic number.

28687514051 is a deficient number, since it is larger than the sum of its proper divisors (4099610173).

28687514051 is a wasteful number, since it uses less digits than its factorization.

28687514051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174241.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 28687514051 in words is "twenty-eight billion, six hundred eighty-seven million, five hundred fourteen thousand, fifty-one".