27765025140 has 48 divisors (see below), whose sum is σ = 80422836480. Its totient is φ = 7148695680.

The previous prime is 27765025133. The next prime is 27765025151. The reversal of 27765025140 is 4152056772.

It is a congruent 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, 7976716 + ... + 7980195.

It is an arithmetic number, because the mean of its divisors is an integer number (1675475760).

Almost surely, 2^27765025140 is an apocalyptic number.

27765025140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27765025140 is an abundant number, since it is smaller than the sum of its proper divisors (52657811340).

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

27765025140 is a wasteful number, since it uses less digits than its factorization.

27765025140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15956952 (or 15956950 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 27765025140 in words is "twenty-seven billion, seven hundred sixty-five million, twenty-five thousand, one hundred forty".