28469246951 has 4 divisors (see below), whose sum is σ = 28604172504. Its totient is φ = 28334321400.

The previous prime is 28469246947. The next prime is 28469247029. The reversal of 28469246951 is 15964296482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15964296482 = 2 ⋅7982148241.

It is a cyclic number.

It is not a de Polignac number, because 28469246951 - 2² = 28469246947 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 (28469246941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67462460 + ... + 67462881.

It is an arithmetic number, because the mean of its divisors is an integer number (7151043126).

Almost surely, 2^28469246951 is an apocalyptic number.

28469246951 is a deficient number, since it is larger than the sum of its proper divisors (134925553).

28469246951 is a wasteful number, since it uses less digits than its factorization.

28469246951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134925552.

The product of its digits is 7464960, while the sum is 56.

The spelling of 28469246951 in words is "twenty-eight billion, four hundred sixty-nine million, two hundred forty-six thousand, nine hundred fifty-one".