28479940951 has 8 divisors (see below), whose sum is σ = 35507458944. Its totient is φ = 22192161720.

The previous prime is 28479940939. The next prime is 28479940961. The reversal of 28479940951 is 15904997482.

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

It is a cyclic number.

It is not a de Polignac number, because 28479940951 - 2¹⁵ = 28479908183 is a prime.

It is a super-2 number, since 2×28479940951² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28479940961) 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 7 ways as a sum of consecutive naturals, for example, 184934605 + ... + 184934758.

It is an arithmetic number, because the mean of its divisors is an integer number (4438432368).

Almost surely, 2^28479940951 is an apocalyptic number.

28479940951 is a deficient number, since it is larger than the sum of its proper divisors (7027517993).

28479940951 is a wasteful number, since it uses less digits than its factorization.

28479940951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369869381.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 28479940951 in words is "twenty-eight billion, four hundred seventy-nine million, nine hundred forty thousand, nine hundred fifty-one".