346640205365426 has 32 divisors (see below), whose sum is σ = 604033273467648. Its totient is φ = 146112271179840.

The previous prime is 346640205365423. The next prime is 346640205365449. The reversal of 346640205365426 is 624563502046643.

It is a super-2 number, since 2×346640205365426² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (346640205365423) 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, 7161365 + ... + 27286728.

It is an arithmetic number, because the mean of its divisors is an integer number (18876039795864).

Almost surely, 2^{346640205365426} is an apocalyptic number.

346640205365426 is a deficient number, since it is larger than the sum of its proper divisors (257393068102222).

346640205365426 is a wasteful number, since it uses less digits than its factorization.

346640205365426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34459946.

The product of its (nonzero) digits is 74649600, while the sum is 56.

The spelling of 346640205365426 in words is "three hundred forty-six trillion, six hundred forty billion, two hundred five million, three hundred sixty-five thousand, four hundred twenty-six".