340849154869 has 4 divisors (see below), whose sum is σ = 340859719296. Its totient is φ = 340838590444.

The previous prime is 340849154839. The next prime is 340849154881. The reversal of 340849154869 is 968451948043.

It is a happy number.

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: 968451948043 = 293 ⋅3305296751.

It is a cyclic number.

It is not a de Polignac number, because 340849154869 - 2²⁷ = 340714937141 is a prime.

It is a super-2 number, since 2×340849154869² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340849154839) 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, 5233669 + ... + 5298394.

It is an arithmetic number, because the mean of its divisors is an integer number (85214929824).

Almost surely, 2^340849154869 is an apocalyptic number.

It is an amenable number.

340849154869 is a deficient number, since it is larger than the sum of its proper divisors (10564427).

340849154869 is a wasteful number, since it uses less digits than its factorization.

340849154869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10564426.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 340849154869 in words is "three hundred forty billion, eight hundred forty-nine million, one hundred fifty-four thousand, eight hundred sixty-nine".