349718261697 has 16 divisors (see below), whose sum is σ = 592115575680. Its totient is φ = 199839006576.

The previous prime is 349718261693. The next prime is 349718261743. The reversal of 349718261697 is 796162817943.

349718261697 is a `hidden beast` number, since 3 + 4 + 9 + 7 + 1 + 8 + 2 + 616 + 9 + 7 = 666.

It is not a de Polignac number, because 349718261697 - 2² = 349718261693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (349718261693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925180398 + ... + 925180775.

It is an arithmetic number, because the mean of its divisors is an integer number (37007223480).

Almost surely, 2^349718261697 is an apocalyptic number.

It is an amenable number.

349718261697 is a deficient number, since it is larger than the sum of its proper divisors (242397313983).

349718261697 is a wasteful number, since it uses less digits than its factorization.

349718261697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850361189 (or 1850361183 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 349718261697 in words is "three hundred forty-nine billion, seven hundred eighteen million, two hundred sixty-one thousand, six hundred ninety-seven".