27801380272 has 40 divisors (see below), whose sum is σ = 57726278496. Its totient is φ = 12936946176.

The previous prime is 27801380237. The next prime is 27801380273. The reversal of 27801380272 is 27208310872.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27801380273) 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, 1007293 + ... + 1034524.

Almost surely, 2^27801380272 is an apocalyptic number.

It is an amenable number.

27801380272 is an abundant number, since it is smaller than the sum of its proper divisors (29924898224).

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

27801380272 is a wasteful number, since it uses less digits than its factorization.

27801380272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041885 (or 2041879 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 27801380272 in words is "twenty-seven billion, eight hundred one million, three hundred eighty thousand, two hundred seventy-two".