27756929019 has 32 divisors (see below), whose sum is σ = 39223475200. Its totient is φ = 17411086080.

The previous prime is 27756928999. The next prime is 27756929021. The reversal of 27756929019 is 91092965772.

It is not a de Polignac number, because 27756929019 - 2¹³ = 27756920827 is a prime.

It is a super-2 number, since 2×27756929019² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27756929019.

It is not an unprimeable number, because it can be changed into a prime (27756922019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11646702 + ... + 11649084.

It is an arithmetic number, because the mean of its divisors is an integer number (1225733600).

Almost surely, 2^27756929019 is an apocalyptic number.

27756929019 is a deficient number, since it is larger than the sum of its proper divisors (11466546181).

27756929019 is a wasteful number, since it uses less digits than its factorization.

27756929019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 4286520, while the sum is 57.

The spelling of 27756929019 in words is "twenty-seven billion, seven hundred fifty-six million, nine hundred twenty-nine thousand, nineteen".