344693077621 has 4 divisors (see below), whose sum is σ = 346003697952. Its totient is φ = 343382457292.

The previous prime is 344693077601. The next prime is 344693077637. The reversal of 344693077621 is 126770396443.

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.

It is a cyclic number.

It is not a de Polignac number, because 344693077621 - 2⁷ = 344693077493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344693077601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655309771 + ... + 655310296.

It is an arithmetic number, because the mean of its divisors is an integer number (86500924488).

Almost surely, 2^344693077621 is an apocalyptic number.

It is an amenable number.

344693077621 is a deficient number, since it is larger than the sum of its proper divisors (1310620331).

344693077621 is a wasteful number, since it uses less digits than its factorization.

344693077621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310620330.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 344693077621 in words is "three hundred forty-four billion, six hundred ninety-three million, seventy-seven thousand, six hundred twenty-one".