27768525730 has 128 divisors (see below), whose sum is σ = 59906304000. Its totient is φ = 9148231680.

The previous prime is 27768525727. The next prime is 27768525731. The reversal of 27768525730 is 3752586772.

It is not an unprimeable number, because it can be changed into a prime (27768525731) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25975636 + ... + 25976704.

It is an arithmetic number, because the mean of its divisors is an integer number (468018000).

Almost surely, 2^27768525730 is an apocalyptic number.

27768525730 is an abundant number, since it is smaller than the sum of its proper divisors (32137778270).

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

27768525730 is a wasteful number, since it uses less digits than its factorization.

27768525730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 4939200, while the sum is 52.

The spelling of 27768525730 in words is "twenty-seven billion, seven hundred sixty-eight million, five hundred twenty-five thousand, seven hundred thirty".