27771246132 has 48 divisors (see below), whose sum is σ = 77276516352. Its totient is φ = 7589656800.

The previous prime is 27771246101. The next prime is 27771246149. The reversal of 27771246132 is 23164217772.

It is a super-2 number, since 2×27771246132² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7185244 + ... + 7189107.

It is an arithmetic number, because the mean of its divisors is an integer number (1609927424).

Almost surely, 2^27771246132 is an apocalyptic number.

It is an amenable number.

27771246132 is an abundant number, since it is smaller than the sum of its proper divisors (49505270220).

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

27771246132 is a wasteful number, since it uses less digits than its factorization.

27771246132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14374388 (or 14374386 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The spelling of 27771246132 in words is "twenty-seven billion, seven hundred seventy-one million, two hundred forty-six thousand, one hundred thirty-two".