27620370766 has 4 divisors (see below), whose sum is σ = 41430556152. Its totient is φ = 13810185382.

The previous prime is 27620370749. The next prime is 27620370787. The reversal of 27620370766 is 66707302672.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 6905092690 + ... + 6905092693.

It is an arithmetic number, because the mean of its divisors is an integer number (10357639038).

Almost surely, 2^27620370766 is an apocalyptic number.

27620370766 is a deficient number, since it is larger than the sum of its proper divisors (13810185386).

27620370766 is a wasteful number, since it uses less digits than its factorization.

27620370766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810185385.

The product of its (nonzero) digits is 889056, while the sum is 46.

The spelling of 27620370766 in words is "twenty-seven billion, six hundred twenty million, three hundred seventy thousand, seven hundred sixty-six".