27487478472 has 16 divisors (see below), whose sum is σ = 68718696240. Its totient is φ = 9162492816.

The previous prime is 27487478441. The next prime is 27487478489.

27487478472 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×27487478472² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572655778 + ... + 572655825.

It is an arithmetic number, because the mean of its divisors is an integer number (4294918515).

Almost surely, 2^27487478472 is an apocalyptic number.

It is an amenable number.

27487478472 is an abundant number, since it is smaller than the sum of its proper divisors (41231217768).

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

27487478472 is a wasteful number, since it uses less digits than its factorization.

27487478472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145311612 (or 1145311608 counting only the distinct ones).

The product of its digits is 39337984, while the sum is 60.

The spelling of 27487478472 in words is "twenty-seven billion, four hundred eighty-seven million, four hundred seventy-eight thousand, four hundred seventy-two".