349785670491811 has 8 divisors (see below), whose sum is σ = 351314355301920. Its totient is φ = 348256996434048.

The previous prime is 349785670491799. The next prime is 349785670491853. The reversal of 349785670491811 is 118194076587943.

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

It is a cyclic number.

It is not a de Polignac number, because 349785670491811 - 2¹¹ = 349785670489763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349785670491011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66386250 + ... + 71461216.

It is an arithmetic number, because the mean of its divisors is an integer number (43914294412740).

Almost surely, 2^{349785670491811} is an apocalyptic number.

349785670491811 is a deficient number, since it is larger than the sum of its proper divisors (1528684810109).

349785670491811 is a wasteful number, since it uses less digits than its factorization.

349785670491811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5376173.

The product of its (nonzero) digits is 365783040, while the sum is 73.

The spelling of 349785670491811 in words is "three hundred forty-nine trillion, seven hundred eighty-five billion, six hundred seventy million, four hundred ninety-one thousand, eight hundred eleven".