27646809916432 has 80 divisors (see below), whose sum is σ = 62643298127872. Its totient is φ = 11572771190400.

The previous prime is 27646809916381. The next prime is 27646809916433. The reversal of 27646809916432 is 23461990864672.

It is a super-2 number, since 2×27646809916432² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27646809916433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296749057 + ... + 296842207.

Almost surely, 2^{27646809916432} is an apocalyptic number.

It is an amenable number.

27646809916432 is an abundant number, since it is smaller than the sum of its proper divisors (34996488211440).

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

27646809916432 is a wasteful number, since it uses less digits than its factorization.

27646809916432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154836 (or 154830 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 67.

The spelling of 27646809916432 in words is "twenty-seven trillion, six hundred forty-six billion, eight hundred nine million, nine hundred sixteen thousand, four hundred thirty-two".