76547642085 has 64 divisors (see below), whose sum is σ = 140956704000. Its totient is φ = 39367399680.

The previous prime is 76547642057. The next prime is 76547642099. The reversal of 76547642085 is 58024674567.

It is a happy number.

76547642085 is a `hidden beast` number, since 76 + 5 + 4 + 76 + 420 + 85 = 666.

It is not a de Polignac number, because 76547642085 - 2⁶ = 76547642021 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3163011 + ... + 3187119.

It is an arithmetic number, because the mean of its divisors is an integer number (2202448500).

Almost surely, 2^76547642085 is an apocalyptic number.

It is an amenable number.

76547642085 is a deficient number, since it is larger than the sum of its proper divisors (64409061915).

76547642085 is a wasteful number, since it uses less digits than its factorization.

76547642085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24963 (or 24957 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 54.

The spelling of 76547642085 in words is "seventy-six billion, five hundred forty-seven million, six hundred forty-two thousand, eighty-five".