349862140872 has 96 divisors (see below), whose sum is σ = 1029588768000. Its totient is φ = 106918807680.

The previous prime is 349862140871. The next prime is 349862140879. The reversal of 349862140872 is 278041268943.

349862140872 is a `hidden beast` number, since 3 + 4 + 9 + 8 + 621 + 4 + 0 + 8 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (349862140871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4082547 + ... + 4167362.

It is an arithmetic number, because the mean of its divisors is an integer number (10724883000).

Almost surely, 2^349862140872 is an apocalyptic number.

It is an amenable number.

349862140872 is an abundant number, since it is smaller than the sum of its proper divisors (679726627128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349862140872 is a wasteful number, since it uses less digits than its factorization.

349862140872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8249971 (or 8249964 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 349862140872 in words is "three hundred forty-nine billion, eight hundred sixty-two million, one hundred forty thousand, eight hundred seventy-two".