27786429954 has 24 divisors (see below), whose sum is σ = 60221911932. Its totient is φ = 9259377120.

The previous prime is 27786429929. The next prime is 27786430003. The reversal of 27786429954 is 45992468772.

It can be written as a sum of positive squares in 2 ways, for example, as 26433882225 + 1352547729 = 162585^2 + 36777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27786429891 and 27786429900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168117 + ... + 289544.

Almost surely, 2^27786429954 is an apocalyptic number.

27786429954 is an abundant number, since it is smaller than the sum of its proper divisors (32435481978).

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

27786429954 is a wasteful number, since it uses less digits than its factorization.

27786429954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461042 (or 461039 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 27786429954 in words is "twenty-seven billion, seven hundred eighty-six million, four hundred twenty-nine thousand, nine hundred fifty-four".