349121863148810 has 8 divisors (see below), whose sum is σ = 628419353667876. Its totient is φ = 139648745259520.

The previous prime is 349121863148801. The next prime is 349121863148827. The reversal of 349121863148810 is 18841368121943.

It is a happy number.

It is a Cunningham number, because it is equal to 18684803²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 349121863148809 + 1 = 18684803^2 + 1^2 .

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

It is a super-2 number, since 2×349121863148810² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 349121863148810.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17456093157431 + ... + 17456093157450.

Almost surely, 2^{349121863148810} is an apocalyptic number.

349121863148810 is a deficient number, since it is larger than the sum of its proper divisors (279297490519066).

349121863148810 is a wasteful number, since it uses less digits than its factorization.

349121863148810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34912186314888.

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 349121863148810 in words is "three hundred forty-nine trillion, one hundred twenty-one billion, eight hundred sixty-three million, one hundred forty-eight thousand, eight hundred ten".