76699561122 has 42 divisors (see below), whose sum is σ = 172518889377. Its totient is φ = 25562995416.

The previous prime is 76699561111. The next prime is 76699561129. The reversal of 76699561122 is 22116599667.

76699561122 is a `hidden beast` number, since 7 + 6 + 69 + 9 + 561 + 12 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 72419653881 + 4279907241 = 269109^2 + 65421^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=195831.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (76699561129) 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 20 ways as a sum of consecutive naturals, for example, 10571248 + ... + 10578500.

Almost surely, 2^76699561122 is an apocalyptic number.

76699561122 is an abundant number, since it is smaller than the sum of its proper divisors (95819328255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76699561122 is an frugal number, since it uses more digits than its factorization.

76699561122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526 (or 7258 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The spelling of 76699561122 in words is "seventy-six billion, six hundred ninety-nine million, five hundred sixty-one thousand, one hundred twenty-two".