346706156272899 has 4 divisors (see below), whose sum is σ = 462274875030536. Its totient is φ = 231137437515264.

The previous prime is 346706156272897. The next prime is 346706156272907. The reversal of 346706156272899 is 998272651607643.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 346706156272899 - 2¹ = 346706156272897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 346706156272899.

It is not an unprimeable number, because it can be changed into a prime (346706156272897) 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, 57784359378814 + ... + 57784359378819.

It is an arithmetic number, because the mean of its divisors is an integer number (115568718757634).

It is a 1-persistent number, because it is pandigital, but 2⋅346706156272899 = 693412312545798 is not.

Almost surely, 2^{346706156272899} is an apocalyptic number.

346706156272899 is a deficient number, since it is larger than the sum of its proper divisors (115568718757637).

346706156272899 is a wasteful number, since it uses less digits than its factorization.

346706156272899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115568718757636.

The product of its (nonzero) digits is 1646023680, while the sum is 75.

The spelling of 346706156272899 in words is "three hundred forty-six trillion, seven hundred six billion, one hundred fifty-six million, two hundred seventy-two thousand, eight hundred ninety-nine".