28613272651 has 4 divisors (see below), whose sum is σ = 28639215072. Its totient is φ = 28587330232.

The previous prime is 28613272631. The next prime is 28613272691. The reversal of 28613272651 is 15627231682.

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 28613272651 - 2¹⁹ = 28612748363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28613272598 and 28613272607.

It is not an unprimeable number, because it can be changed into a prime (28613272631) 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, 12969556 + ... + 12971761.

It is an arithmetic number, because the mean of its divisors is an integer number (7159803768).

Almost surely, 2^28613272651 is an apocalyptic number.

28613272651 is a deficient number, since it is larger than the sum of its proper divisors (25942421).

28613272651 is a wasteful number, since it uses less digits than its factorization.

28613272651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25942420.

The product of its digits is 241920, while the sum is 43.

The spelling of 28613272651 in words is "twenty-eight billion, six hundred thirteen million, two hundred seventy-two thousand, six hundred fifty-one".