28526671451 has 4 divisors (see below), whose sum is σ = 28534082904. Its totient is φ = 28519260000.

The previous prime is 28526671447. The next prime is 28526671469. The reversal of 28526671451 is 15417662582.

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

It is a cyclic number.

It is not a de Polignac number, because 28526671451 - 2² = 28526671447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28526671396 and 28526671405.

It is not an unprimeable number, because it can be changed into a prime (28526671441) 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, 3699950 + ... + 3707651.

It is an arithmetic number, because the mean of its divisors is an integer number (7133520726).

Almost surely, 2^28526671451 is an apocalyptic number.

28526671451 is a deficient number, since it is larger than the sum of its proper divisors (7411453).

28526671451 is an equidigital number, since it uses as much as digits as its factorization.

28526671451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411452.

The product of its digits is 806400, while the sum is 47.

The spelling of 28526671451 in words is "twenty-eight billion, five hundred twenty-six million, six hundred seventy-one thousand, four hundred fifty-one".