76699194012 has 144 divisors (see below), whose sum is σ = 226263989952. Its totient is φ = 21452221440.

The previous prime is 76699193999. The next prime is 76699194023. The reversal of 76699194012 is 21049199667.

It is a happy number.

It is a super-2 number, since 2×76699194012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76699194012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6150888 + ... + 6163344.

It is an arithmetic number, because the mean of its divisors is an integer number (1571277708).

Almost surely, 2^76699194012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76699194012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113131994976).

76699194012 is an abundant number, since it is smaller than the sum of its proper divisors (149564795940).

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

76699194012 is a wasteful number, since it uses less digits than its factorization.

76699194012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12988 (or 12983 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The spelling of 76699194012 in words is "seventy-six billion, six hundred ninety-nine million, one hundred ninety-four thousand, twelve".