28742904876 has 48 divisors (see below), whose sum is σ = 76894272000. Its totient is φ = 8185845120.

The previous prime is 28742904857. The next prime is 28742904889. The reversal of 28742904876 is 67840924782.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524001 + ... + 576248.

It is an arithmetic number, because the mean of its divisors is an integer number (1601964000).

Almost surely, 2^28742904876 is an apocalyptic number.

It is an amenable number.

28742904876 is an abundant number, since it is smaller than the sum of its proper divisors (48151367124).

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

28742904876 is a wasteful number, since it uses less digits than its factorization.

28742904876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100574 (or 1100572 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 28742904876 in words is "twenty-eight billion, seven hundred forty-two million, nine hundred four thousand, eight hundred seventy-six".