346947477593 has 4 divisors (see below), whose sum is σ = 347146759908. Its totient is φ = 346748195280.

The previous prime is 346947477571. The next prime is 346947477607. The reversal of 346947477593 is 395774749643.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12554754304 + 334392723289 = 112048^2 + 578267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346947477593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346947477563) 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, 99638546 + ... + 99642027.

It is an arithmetic number, because the mean of its divisors is an integer number (86786689977).

Almost surely, 2^346947477593 is an apocalyptic number.

It is an amenable number.

346947477593 is a deficient number, since it is larger than the sum of its proper divisors (199282315).

346947477593 is a wasteful number, since it uses less digits than its factorization.

346947477593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199282314.

The product of its digits is 480090240, while the sum is 68.

The spelling of 346947477593 in words is "three hundred forty-six billion, nine hundred forty-seven million, four hundred seventy-seven thousand, five hundred ninety-three".