80669827767 has 16 divisors (see below), whose sum is σ = 108584784000. Its totient is φ = 53267726304.

The previous prime is 80669827687. The next prime is 80669827811. The reversal of 80669827767 is 76772896608.

It is not a de Polignac number, because 80669827767 - 2⁷ = 80669827639 is a prime.

It is a super-2 number, since 2×80669827767² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80669827698 and 80669827707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80669827267) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 919084 + ... + 1003022.

It is an arithmetic number, because the mean of its divisors is an integer number (6786549000).

Almost surely, 2^80669827767 is an apocalyptic number.

80669827767 is a deficient number, since it is larger than the sum of its proper divisors (27914956233).

80669827767 is a wasteful number, since it uses less digits than its factorization.

80669827767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86990.

The product of its (nonzero) digits is 85349376, while the sum is 66.

The spelling of 80669827767 in words is "eighty billion, six hundred sixty-nine million, eight hundred twenty-seven thousand, seven hundred sixty-seven".