27752840803845 has 384 divisors, whose sum is σ = 55060978452480. Its totient is φ = 13353798205440.

The previous prime is 27752840803841. The next prime is 27752840803861. The reversal of 27752840803845 is 54830804825772.

27752840803845 is a `hidden beast` number, since 2 + 77 + 528 + 4 + 0 + 8 + 0 + 38 + 4 + 5 = 666.

It is not a de Polignac number, because 27752840803845 - 2² = 27752840803841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27752840803841) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 19696834501 + ... + 19696835909.

It is an arithmetic number, because the mean of its divisors is an integer number (143387964720).

Almost surely, 2^{27752840803845} is an apocalyptic number.

It is an amenable number.

27752840803845 is a deficient number, since it is larger than the sum of its proper divisors (27308137648635).

27752840803845 is a wasteful number, since it uses less digits than its factorization.

27752840803845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 120422400, while the sum is 63.

The spelling of 27752840803845 in words is "twenty-seven trillion, seven hundred fifty-two billion, eight hundred forty million, eight hundred three thousand, eight hundred forty-five".