27587872280 has 32 divisors (see below), whose sum is σ = 62444420640. Its totient is φ = 10969067520.

The previous prime is 27587872237. The next prime is 27587872283. The reversal of 27587872280 is 8227878572.

It is a happy number.

It is a super-2 number, since 2×27587872280² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27587872283) 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, 2058281 + ... + 2071640.

It is an arithmetic number, because the mean of its divisors is an integer number (1951388145).

Almost surely, 2^27587872280 is an apocalyptic number.

27587872280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27587872280 is an abundant number, since it is smaller than the sum of its proper divisors (34856548360).

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

27587872280 is a wasteful number, since it uses less digits than its factorization.

27587872280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130099 (or 4130095 counting only the distinct ones).

The product of its (nonzero) digits is 7024640, while the sum is 56.

The spelling of 27587872280 in words is "twenty-seven billion, five hundred eighty-seven million, eight hundred seventy-two thousand, two hundred eighty".