28755148888831 has 2 divisors, whose sum is σ = 28755148888832. Its totient is φ = 28755148888830.

The previous prime is 28755148888801. The next prime is 28755148888877. The reversal of 28755148888831 is 13888884155782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28755148888831 - 2⁷ = 28755148888703 is a prime.

It is a super-2 number, since 2×28755148888831² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28755148888801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14377574444415 + 14377574444416.

It is an arithmetic number, because the mean of its divisors is an integer number (14377574444416).

Almost surely, 2^{28755148888831} is an apocalyptic number.

28755148888831 is a deficient number, since it is larger than the sum of its proper divisors (1).

28755148888831 is an equidigital number, since it uses as much as digits as its factorization.

28755148888831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1101004800, while the sum is 76.

The spelling of 28755148888831 in words is "twenty-eight trillion, seven hundred fifty-five billion, one hundred forty-eight million, eight hundred eighty-eight thousand, eight hundred thirty-one".