349148857172 has 6 divisors (see below), whose sum is σ = 611010500058. Its totient is φ = 174574428584.

The previous prime is 349148857159. The next prime is 349148857247. The reversal of 349148857172 is 271758841943.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 335488857796 + 13659999376 = 579214^2 + 116876^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43643607143 + ... + 43643607150.

It is an arithmetic number, because the mean of its divisors is an integer number (101835083343).

Almost surely, 2^349148857172 is an apocalyptic number.

It is an amenable number.

349148857172 is a deficient number, since it is larger than the sum of its proper divisors (261861642886).

349148857172 is a wasteful number, since it uses less digits than its factorization.

349148857172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87287214297 (or 87287214295 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 59.

The spelling of 349148857172 in words is "three hundred forty-nine billion, one hundred forty-eight million, eight hundred fifty-seven thousand, one hundred seventy-two".