343642620401 has 4 divisors (see below), whose sum is σ = 343645830000. Its totient is φ = 343639410804.

The previous prime is 343642620383. The next prime is 343642620443. The reversal of 343642620401 is 104026246343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104026246343 = 19 ⋅5475065597.

It is a cyclic number.

It is not a de Polignac number, because 343642620401 - 2¹⁰ = 343642619377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343642620301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438451 + ... + 1660248.

It is an arithmetic number, because the mean of its divisors is an integer number (85911457500).

Almost surely, 2^343642620401 is an apocalyptic number.

It is an amenable number.

343642620401 is a deficient number, since it is larger than the sum of its proper divisors (3209599).

343642620401 is a wasteful number, since it uses less digits than its factorization.

343642620401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209598.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 343642620401 its reverse (104026246343), we get a palindrome (447668866744).

The spelling of 343642620401 in words is "three hundred forty-three billion, six hundred forty-two million, six hundred twenty thousand, four hundred one".