76358804661 has 12 divisors (see below), whose sum is σ = 110300044140. Its totient is φ = 50904026880.

The previous prime is 76358804653. The next prime is 76358804689. The reversal of 76358804661 is 16640885367.

76358804661 is a `hidden beast` number, since 76 + 35 + 8 + 80 + 466 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71733444561 + 4625360100 = 267831^2 + 68010^2 .

It is not a de Polignac number, because 76358804661 - 2³ = 76358804653 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76358804598 and 76358804607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76358804611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137971 + ... + 414431.

It is an arithmetic number, because the mean of its divisors is an integer number (9191670345).

Almost surely, 2^76358804661 is an apocalyptic number.

It is an amenable number.

76358804661 is a deficient number, since it is larger than the sum of its proper divisors (33941239479).

76358804661 is a wasteful number, since it uses less digits than its factorization.

76358804661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307156 (or 307153 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 76358804661 in words is "seventy-six billion, three hundred fifty-eight million, eight hundred four thousand, six hundred sixty-one".