345680768691 has 80 divisors (see below), whose sum is σ = 532155096000. Its totient is φ = 223552224000.

The previous prime is 345680768677. The next prime is 345680768791. The reversal of 345680768691 is 196867086543.

345680768691 is a `hidden beast` number, since 3 + 4 + 568 + 0 + 7 + 6 + 8 + 69 + 1 = 666.

It is not a de Polignac number, because 345680768691 - 2¹¹ = 345680766643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345680768611) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 93400141 + ... + 93403841.

It is an arithmetic number, because the mean of its divisors is an integer number (6651938700).

Almost surely, 2^345680768691 is an apocalyptic number.

345680768691 is a deficient number, since it is larger than the sum of its proper divisors (186474327309).

345680768691 is a wasteful number, since it uses less digits than its factorization.

345680768691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4042 (or 4033 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 345680768691 in words is "three hundred forty-five billion, six hundred eighty million, seven hundred sixty-eight thousand, six hundred ninety-one".