76809693345 has 64 divisors (see below), whose sum is σ = 154427129856. Its totient is φ = 31669505280.

The previous prime is 76809693343. The next prime is 76809693349. The reversal of 76809693345 is 54339690867.

It is not a de Polignac number, because 76809693345 - 2¹ = 76809693343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76809693343) by changing a digit.

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, 115134 + ... + 408503.

It is an arithmetic number, because the mean of its divisors is an integer number (2412923904).

Almost surely, 2^76809693345 is an apocalyptic number.

It is an amenable number.

76809693345 is an abundant number, since it is smaller than the sum of its proper divisors (77617436511).

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

76809693345 is a wasteful number, since it uses less digits than its factorization.

76809693345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523790.

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 76809693345 in words is "seventy-six billion, eight hundred nine million, six hundred ninety-three thousand, three hundred forty-five".