28552631851 has 2 divisors, whose sum is σ = 28552631852. Its totient is φ = 28552631850.

The previous prime is 28552631803. The next prime is 28552631857. The reversal of 28552631851 is 15813625582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28552631851 - 2¹⁵ = 28552599083 is a prime.

It is not a weakly prime, because it can be changed into another prime (28552631857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276315925 + 14276315926.

It is an arithmetic number, because the mean of its divisors is an integer number (14276315926).

Almost surely, 2^28552631851 is an apocalyptic number.

28552631851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552631851 is an equidigital number, since it uses as much as digits as its factorization.

28552631851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576000, while the sum is 46.

The spelling of 28552631851 in words is "twenty-eight billion, five hundred fifty-two million, six hundred thirty-one thousand, eight hundred fifty-one".