27291000436 has 24 divisors (see below), whose sum is σ = 57454738880. Its totient is φ = 11080556352.

The previous prime is 27291000431. The next prime is 27291000467. The reversal of 27291000436 is 63400019272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27291000431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25648905 + ... + 25649968.

Almost surely, 2^27291000436 is an apocalyptic number.

It is an amenable number.

27291000436 is an abundant number, since it is smaller than the sum of its proper divisors (30163738444).

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

27291000436 is a wasteful number, since it uses less digits than its factorization.

27291000436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51298903 (or 51298901 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 27291000436 in words is "twenty-seven billion, two hundred ninety-one million, four hundred thirty-six", and thus it is an aban number.