27158765260 has 48 divisors (see below), whose sum is σ = 63238264992. Its totient is φ = 9714009600.

The previous prime is 27158765251. The next prime is 27158765261. The reversal of 27158765260 is 6256785172.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (27158765261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998457 + ... + 1025296.

It is an arithmetic number, because the mean of its divisors is an integer number (1317463854).

Almost surely, 2^27158765260 is an apocalyptic number.

27158765260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27158765260 is an abundant number, since it is smaller than the sum of its proper divisors (36079499732).

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

27158765260 is a wasteful number, since it uses less digits than its factorization.

27158765260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023834 (or 2023832 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 27158765260 in words is "twenty-seven billion, one hundred fifty-eight million, seven hundred sixty-five thousand, two hundred sixty".