76856065867 has 32 divisors (see below), whose sum is σ = 95265510912. Its totient is φ = 60495773184.

The previous prime is 76856065841. The next prime is 76856065889.

76856065867 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 76856065867 - 2⁷ = 76856065739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76856065799 and 76856065808.

It is not an unprimeable number, because it can be changed into a prime (76856065807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5176108 + ... + 5190934.

It is an arithmetic number, because the mean of its divisors is an integer number (2977047216).

Almost surely, 2^76856065867 is an apocalyptic number.

76856065867 is a deficient number, since it is larger than the sum of its proper divisors (18409445045).

76856065867 is a wasteful number, since it uses less digits than its factorization.

76856065867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15907.

The product of its (nonzero) digits is 101606400, while the sum is 64.

The spelling of 76856065867 in words is "seventy-six billion, eight hundred fifty-six million, sixty-five thousand, eight hundred sixty-seven".