27091343634 has 16 divisors (see below), whose sum is σ = 54248056320. Its totient is φ = 9019553040.

The previous prime is 27091343611. The next prime is 27091343659. The reversal of 27091343634 is 43634319072.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718322 + ... + 2728269.

It is an arithmetic number, because the mean of its divisors is an integer number (3390503520).

Almost surely, 2^27091343634 is an apocalyptic number.

27091343634 is an abundant number, since it is smaller than the sum of its proper divisors (27156712686).

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

27091343634 is a wasteful number, since it uses less digits than its factorization.

27091343634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447425.

The product of its (nonzero) digits is 326592, while the sum is 42.

The spelling of 27091343634 in words is "twenty-seven billion, ninety-one million, three hundred forty-three thousand, six hundred thirty-four".