340644324918912 has 256 divisors, whose sum is σ = 1053245787955200. Its totient is φ = 95531547340800.

The previous prime is 340644324918907. The next prime is 340644324918929. The reversal of 340644324918912 is 219819423446043.

It is a super-2 number, since 2×340644324918912² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76372087 + ... + 80709257.

It is an arithmetic number, because the mean of its divisors is an integer number (4114241359200).

Almost surely, 2^{340644324918912} is an apocalyptic number.

340644324918912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340644324918912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (526622893977600).

340644324918912 is an abundant number, since it is smaller than the sum of its proper divisors (712601463036288).

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

340644324918912 is a wasteful number, since it uses less digits than its factorization.

340644324918912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337735 (or 4337723 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 60.

The spelling of 340644324918912 in words is "three hundred forty trillion, six hundred forty-four billion, three hundred twenty-four million, nine hundred eighteen thousand, nine hundred twelve".