840012122608 has 40 divisors (see below), whose sum is σ = 1631136672000. Its totient is φ = 419074055424.

The previous prime is 840012122567. The next prime is 840012122611. The reversal of 840012122608 is 806221210048.

It is a super-2 number, since 2×840012122608² (a number of 25 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 in 7 ways as a sum of consecutive naturals, for example, 39072310 + ... + 39093802.

It is an arithmetic number, because the mean of its divisors is an integer number (40778416800).

Almost surely, 2^840012122608 is an apocalyptic number.

It is an amenable number.

840012122608 is a deficient number, since it is larger than the sum of its proper divisors (791124549392).

840012122608 is a wasteful number, since it uses less digits than its factorization.

840012122608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26809 (or 26803 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 840012122608 in words is "eight hundred forty billion, twelve million, one hundred twenty-two thousand, six hundred eight".