27726680442 has 32 divisors (see below), whose sum is σ = 56846380608. Its totient is φ = 9012197376.

The previous prime is 27726680407. The next prime is 27726680447. The reversal of 27726680442 is 24408662772.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 27726680391 and 27726680400.

It is not an unprimeable number, because it can be changed into a prime (27726680447) 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, 215623 + ... + 319290.

It is an arithmetic number, because the mean of its divisors is an integer number (1776449394).

Almost surely, 2^27726680442 is an apocalyptic number.

27726680442 is an abundant number, since it is smaller than the sum of its proper divisors (29119700166).

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

27726680442 is a wasteful number, since it uses less digits than its factorization.

27726680442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535134.

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 27726680442 in words is "twenty-seven billion, seven hundred twenty-six million, six hundred eighty thousand, four hundred forty-two".