28667494880694 has 48 divisors (see below), whose sum is σ = 63890153293824. Its totient is φ = 9284735905200.

The previous prime is 28667494880663. The next prime is 28667494880767. The reversal of 28667494880694 is 49608849476682.

It is a happy number.

28667494880694 is a `hidden beast` number, since 2 + 8 + 6 + 6 + 7 + 49 + 488 + 0 + 6 + 94 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96810562 + ... + 97106229.

It is an arithmetic number, because the mean of its divisors is an integer number (1331044860288).

Almost surely, 2^{28667494880694} is an apocalyptic number.

28667494880694 is an abundant number, since it is smaller than the sum of its proper divisors (35222658413130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28667494880694 is a wasteful number, since it uses less digits than its factorization.

28667494880694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193917033 (or 193917030 counting only the distinct ones).

The product of its (nonzero) digits is 8026324992, while the sum is 81.

The spelling of 28667494880694 in words is "twenty-eight trillion, six hundred sixty-seven billion, four hundred ninety-four million, eight hundred eighty thousand, six hundred ninety-four".