349720257803 has 32 divisors (see below), whose sum is σ = 412198502400. Its totient is φ = 290510960544.

The previous prime is 349720257791. The next prime is 349720257863. The reversal of 349720257803 is 308752027943.

It is a happy number.

It is not a de Polignac number, because 349720257803 - 2²⁶ = 349653148939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349720257863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14062526 + ... + 14087372.

It is an arithmetic number, because the mean of its divisors is an integer number (12881203200).

Almost surely, 2^349720257803 is an apocalyptic number.

349720257803 is a deficient number, since it is larger than the sum of its proper divisors (62478244597).

349720257803 is a wasteful number, since it uses less digits than its factorization.

349720257803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25319.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 349720257803 in words is "three hundred forty-nine billion, seven hundred twenty million, two hundred fifty-seven thousand, eight hundred three".