80761813627 has 4 divisors (see below), whose sum is σ = 88103796696. Its totient is φ = 73419830560.

The previous prime is 80761813621. The next prime is 80761813631. The reversal of 80761813627 is 72631816708.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 80761813627 - 2³ = 80761813619 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80761813621) 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 3 ways as a sum of consecutive naturals, for example, 3670991518 + ... + 3670991539.

It is an arithmetic number, because the mean of its divisors is an integer number (22025949174).

Almost surely, 2^80761813627 is an apocalyptic number.

80761813627 is a deficient number, since it is larger than the sum of its proper divisors (7341983069).

80761813627 is a wasteful number, since it uses less digits than its factorization.

80761813627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341983068.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 80761813627 in words is "eighty billion, seven hundred sixty-one million, eight hundred thirteen thousand, six hundred twenty-seven".