340405325617 has 8 divisors (see below), whose sum is σ = 389097729216. Its totient is φ = 291728689872.

The previous prime is 340405325609. The next prime is 340405325621. The reversal of 340405325617 is 716523504043.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 340405325617 - 2³ = 340405325609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340405325617.

It is not an unprimeable number, because it can be changed into a prime (340405325647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895663 + ... + 3982084.

It is an arithmetic number, because the mean of its divisors is an integer number (48637216152).

Almost surely, 2^340405325617 is an apocalyptic number.

It is an amenable number.

340405325617 is a deficient number, since it is larger than the sum of its proper divisors (48692403599).

340405325617 is an equidigital number, since it uses as much as digits as its factorization.

340405325617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883927.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 340405325617 in words is "three hundred forty billion, four hundred five million, three hundred twenty-five thousand, six hundred seventeen".