28281400692827 has 16 divisors (see below), whose sum is σ = 28500690201984. Its totient is φ = 28063121688000.

The previous prime is 28281400692821. The next prime is 28281400692889. The reversal of 28281400692827 is 72829600418282.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28281400692827 - 2³⁶ = 28212681216091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28281400692821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93967052 + ... + 94267542.

It is an arithmetic number, because the mean of its divisors is an integer number (1781293137624).

Almost surely, 2^{28281400692827} is an apocalyptic number.

28281400692827 is a deficient number, since it is larger than the sum of its proper divisors (219289509157).

28281400692827 is a wasteful number, since it uses less digits than its factorization.

28281400692827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302170.

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 28281400692827 in words is "twenty-eight trillion, two hundred eighty-one billion, four hundred million, six hundred ninety-two thousand, eight hundred twenty-seven".