27931049285768 has 32 divisors (see below), whose sum is σ = 52502224121760. Its totient is φ = 13930469164800.

The previous prime is 27931049285759. The next prime is 27931049285779. The reversal of 27931049285768 is 86758294013972.

It is a super-2 number, since 2×27931049285768² (a number of 28 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 16466543 + ... + 18083393.

It is an arithmetic number, because the mean of its divisors is an integer number (1640694503805).

It is a 1-persistent number, because it is pandigital, but 2⋅27931049285768 = 55862098571536 is not.

Almost surely, 2^{27931049285768} is an apocalyptic number.

It is an amenable number.

27931049285768 is a deficient number, since it is larger than the sum of its proper divisors (24571174835992).

27931049285768 is a wasteful number, since it uses less digits than its factorization.

27931049285768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622277 (or 1622273 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 71.

The spelling of 27931049285768 in words is "twenty-seven trillion, nine hundred thirty-one billion, forty-nine million, two hundred eighty-five thousand, seven hundred sixty-eight".