27727481406 has 32 divisors (see below), whose sum is σ = 58894483968. Its totient is φ = 8672526720.

The previous prime is 27727481401. The next prime is 27727481417. The reversal of 27727481406 is 60418472772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27727481401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376870 + ... + 444393.

It is an arithmetic number, because the mean of its divisors is an integer number (1840452624).

Almost surely, 2^27727481406 is an apocalyptic number.

27727481406 is an abundant number, since it is smaller than the sum of its proper divisors (31167002562).

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

27727481406 is a wasteful number, since it uses less digits than its factorization.

27727481406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821616.

The product of its (nonzero) digits is 1053696, while the sum is 48.

The spelling of 27727481406 in words is "twenty-seven billion, seven hundred twenty-seven million, four hundred eighty-one thousand, four hundred six".