28317724276940 has 48 divisors (see below), whose sum is σ = 67966247506752. Its totient is φ = 9708404146176.

The previous prime is 28317724276939. The next prime is 28317724276951. The reversal of 28317724276940 is 4967242771382.

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, 2941109 + ... + 8079948.

It is an arithmetic number, because the mean of its divisors is an integer number (1415963489724).

Almost surely, 2^{28317724276940} is an apocalyptic number.

28317724276940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28317724276940 is an abundant number, since it is smaller than the sum of its proper divisors (39648523229812).

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

28317724276940 is a wasteful number, since it uses less digits than its factorization.

28317724276940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11039426 (or 11039424 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 62.

The spelling of 28317724276940 in words is "twenty-eight trillion, three hundred seventeen billion, seven hundred twenty-four million, two hundred seventy-six thousand, nine hundred forty".