27646320060640 has 48 divisors (see below), whose sum is σ = 68154189028128. Its totient is φ = 10577722456576.

The previous prime is 27646320060481. The next prime is 27646320060703. The reversal of 27646320060640 is 4606002364672.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent 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, 3756289807 + ... + 3756297166.

It is an arithmetic number, because the mean of its divisors is an integer number (1419878938086).

Almost surely, 2^{27646320060640} is an apocalyptic number.

27646320060640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27646320060640 is an abundant number, since it is smaller than the sum of its proper divisors (40507868967488).

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

27646320060640 is a wasteful number, since it uses less digits than its factorization.

27646320060640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512587011 (or 7512587003 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 27646320060640 in words is "twenty-seven trillion, six hundred forty-six billion, three hundred twenty million, sixty thousand, six hundred forty".