27020806761 has 8 divisors (see below), whose sum is σ = 38799107200. Its totient is φ = 16628188752.

The previous prime is 27020806733. The next prime is 27020806777. The reversal of 27020806761 is 16760802072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27020806761 - 2¹⁹ = 27020282473 is a prime.

It is a super-2 number, since 2×27020806761² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 692841199 = 27020806761 / (2 + 7 + 0 + 2 + 0 + 8 + 0 + 6 + 7 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27020806711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346420561 + ... + 346420638.

It is an arithmetic number, because the mean of its divisors is an integer number (4849888400).

Almost surely, 2^27020806761 is an apocalyptic number.

It is an amenable number.

27020806761 is a deficient number, since it is larger than the sum of its proper divisors (11778300439).

27020806761 is a wasteful number, since it uses less digits than its factorization.

27020806761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692841215.

The product of its (nonzero) digits is 56448, while the sum is 39.

The spelling of 27020806761 in words is "twenty-seven billion, twenty million, eight hundred six thousand, seven hundred sixty-one".