76836863868 has 24 divisors (see below), whose sum is σ = 179983633872. Its totient is φ = 25512628224.

The previous prime is 76836863813. The next prime is 76836863923. The reversal of 76836863868 is 86836863867.

It is an interprime number because it is at equal distance from previous prime (76836863813) and next prime (76836863923).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12454255 + ... + 12460422.

It is an arithmetic number, because the mean of its divisors is an integer number (7499318078).

Almost surely, 2^76836863868 is an apocalyptic number.

It is an amenable number.

76836863868 is an abundant number, since it is smaller than the sum of its proper divisors (103146770004).

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

76836863868 is a wasteful number, since it uses less digits than its factorization.

76836863868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24914941 (or 24914939 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 69.

Subtracting 76836863868 from its reverse (86836863867), we obtain a palindrome (9999999999).

The spelling of 76836863868 in words is "seventy-six billion, eight hundred thirty-six million, eight hundred sixty-three thousand, eight hundred sixty-eight".