27409860728 has 32 divisors (see below), whose sum is σ = 51599116800. Its totient is φ = 13650198528.

The previous prime is 27409860721. The next prime is 27409860743. The reversal of 27409860728 is 82706890472.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 27409860728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27409860721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350400 + ... + 2362032.

It is an arithmetic number, because the mean of its divisors is an integer number (1612472400).

Almost surely, 2^27409860728 is an apocalyptic number.

It is an amenable number.

27409860728 is a deficient number, since it is larger than the sum of its proper divisors (24189256072).

27409860728 is a wasteful number, since it uses less digits than its factorization.

27409860728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791 (or 12787 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 27409860728 in words is "twenty-seven billion, four hundred nine million, eight hundred sixty thousand, seven hundred twenty-eight".