28307580551 has 2 divisors, whose sum is σ = 28307580552. Its totient is φ = 28307580550.

The previous prime is 28307580547. The next prime is 28307580569. The reversal of 28307580551 is 15508570382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28307580551 - 2² = 28307580547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28307580541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14153790275 + 14153790276.

It is an arithmetic number, because the mean of its divisors is an integer number (14153790276).

Almost surely, 2^28307580551 is an apocalyptic number.

28307580551 is a deficient number, since it is larger than the sum of its proper divisors (1).

28307580551 is an equidigital number, since it uses as much as digits as its factorization.

28307580551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 28307580551 in words is "twenty-eight billion, three hundred seven million, five hundred eighty thousand, five hundred fifty-one".