27534520836 has 60 divisors (see below), whose sum is σ = 72058291228. Its totient is φ = 9168277248.

The previous prime is 27534520831. The next prime is 27534520879. The reversal of 27534520836 is 63802543572.

27534520836 is a `hidden beast` number, since 2 + 75 + 345 + 208 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13655324736 + 13879196100 = 116856^2 + 117810^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27534520791 and 27534520800.

It is not an unprimeable number, because it can be changed into a prime (27534520831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 258240 + ... + 348936.

Almost surely, 2^27534520836 is an apocalyptic number.

It is an amenable number.

27534520836 is an abundant number, since it is smaller than the sum of its proper divisors (44523770392).

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

27534520836 is a wasteful number, since it uses less digits than its factorization.

27534520836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91650 (or 91639 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 27534520836 in words is "twenty-seven billion, five hundred thirty-four million, five hundred twenty thousand, eight hundred thirty-six".