28554491295331 has 2 divisors, whose sum is σ = 28554491295332. Its totient is φ = 28554491295330.

The previous prime is 28554491295311. The next prime is 28554491295377. The reversal of 28554491295331 is 13359219445582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28554491295331 - 2⁷ = 28554491295203 is a prime.

It is a super-2 number, since 2×28554491295331² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28554491295331.

It is not a weakly prime, because it can be changed into another prime (28554491295301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277245647665 + 14277245647666.

It is an arithmetic number, because the mean of its divisors is an integer number (14277245647666).

Almost surely, 2^{28554491295331} is an apocalyptic number.

28554491295331 is a deficient number, since it is larger than the sum of its proper divisors (1).

28554491295331 is an equidigital number, since it uses as much as digits as its factorization.

28554491295331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656000, while the sum is 61.

The spelling of 28554491295331 in words is "twenty-eight trillion, five hundred fifty-four billion, four hundred ninety-one million, two hundred ninety-five thousand, three hundred thirty-one".