340453621677 has 8 divisors (see below), whose sum is σ = 488856482464. Its totient is φ = 209509921008.

The previous prime is 340453621657. The next prime is 340453621679. The reversal of 340453621677 is 776126354043.

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

It is not a de Polignac number, because 340453621677 - 2¹⁰ = 340453620653 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 (340453621679) 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, 4364789983 + ... + 4364790060.

It is an arithmetic number, because the mean of its divisors is an integer number (61107060308).

Almost surely, 2^340453621677 is an apocalyptic number.

It is an amenable number.

340453621677 is a deficient number, since it is larger than the sum of its proper divisors (148402860787).

340453621677 is a wasteful number, since it uses less digits than its factorization.

340453621677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8729580059.

The product of its (nonzero) digits is 2540160, while the sum is 48.

The spelling of 340453621677 in words is "three hundred forty billion, four hundred fifty-three million, six hundred twenty-one thousand, six hundred seventy-seven".