34478922566778 has 16 divisors (see below), whose sum is σ = 68957980011360. Its totient is φ = 11492951709296.

The previous prime is 34478922566761. The next prime is 34478922566831. The reversal of 34478922566778 is 87766522987443.

It is a super-2 number, since 2×34478922566778² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2130000 + ... + 8572907.

It is an arithmetic number, because the mean of its divisors is an integer number (4309873750710).

Almost surely, 2^{34478922566778} is an apocalyptic number.

34478922566778 is an abundant number, since it is smaller than the sum of its proper divisors (34479057444582).

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

34478922566778 is a wasteful number, since it uses less digits than its factorization.

34478922566778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11239821.

The product of its digits is 6827950080, while the sum is 78.

The spelling of 34478922566778 in words is "thirty-four trillion, four hundred seventy-eight billion, nine hundred twenty-two million, five hundred sixty-six thousand, seven hundred seventy-eight".