765766619982 has 128 divisors (see below), whose sum is σ = 2095737369600. Its totient is φ = 201831896448.

The previous prime is 765766619963. The next prime is 765766619983. The reversal of 765766619982 is 289916667567.

It is a self number, because there is not a number n which added to its sum of digits gives 765766619982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765766619983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7798869 + ... + 7896447.

It is an arithmetic number, because the mean of its divisors is an integer number (16372948200).

Almost surely, 2^765766619982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765766619982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047868684800).

765766619982 is an abundant number, since it is smaller than the sum of its proper divisors (1329970749618).

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

765766619982 is a wasteful number, since it uses less digits than its factorization.

765766619982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99207 (or 99201 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 765766619982 in words is "seven hundred sixty-five billion, seven hundred sixty-six million, six hundred nineteen thousand, nine hundred eighty-two".