76764004040 has 16 divisors (see below), whose sum is σ = 172719009180. Its totient is φ = 30705601600.

The previous prime is 76764003991. The next prime is 76764004049. The reversal of 76764004040 is 4040046767.

It can be written as a sum of positive squares in 2 ways, for example, as 73589583076 + 3174420964 = 271274^2 + 56342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76764003985 and 76764004003.

It is not an unprimeable number, because it can be changed into a prime (76764004049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959550011 + ... + 959550090.

Almost surely, 2^76764004040 is an apocalyptic number.

It is an amenable number.

76764004040 is an abundant number, since it is smaller than the sum of its proper divisors (95955005140).

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

76764004040 is a wasteful number, since it uses less digits than its factorization.

76764004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919100112 (or 1919100108 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The spelling of 76764004040 in words is "seventy-six billion, seven hundred sixty-four million, four thousand, forty".