343457278198 has 4 divisors (see below), whose sum is σ = 515185917300. Its totient is φ = 171728639098.

The previous prime is 343457278187. The next prime is 343457278201. The reversal of 343457278198 is 891872754343.

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

It is a super-2 number, since 2×343457278198² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85864319548 + ... + 85864319551.

It is an arithmetic number, because the mean of its divisors is an integer number (128796479325).

Almost surely, 2^343457278198 is an apocalyptic number.

343457278198 is a deficient number, since it is larger than the sum of its proper divisors (171728639102).

343457278198 is a wasteful number, since it uses less digits than its factorization.

343457278198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171728639101.

The product of its digits is 40642560, while the sum is 61.

The spelling of 343457278198 in words is "three hundred forty-three billion, four hundred fifty-seven million, two hundred seventy-eight thousand, one hundred ninety-eight".