340180809247 has 4 divisors (see below), whose sum is σ = 344486895520. Its totient is φ = 335874722976.

The previous prime is 340180809169. The next prime is 340180809253. The reversal of 340180809247 is 742908081043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 742908081043 = 739 ⋅1005288337.

It is a cyclic number.

It is not a de Polignac number, because 340180809247 - 2²³ = 340172420639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 340180809197 and 340180809206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340180809347) 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, 2153043018 + ... + 2153043175.

It is an arithmetic number, because the mean of its divisors is an integer number (86121723880).

Almost surely, 2^340180809247 is an apocalyptic number.

340180809247 is a deficient number, since it is larger than the sum of its proper divisors (4306086273).

340180809247 is an equidigital number, since it uses as much as digits as its factorization.

340180809247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4306086272.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 340180809247 in words is "three hundred forty billion, one hundred eighty million, eight hundred nine thousand, two hundred forty-seven".