34946189721 has 15 divisors (see below), whose sum is σ = 52206080773. Its totient is φ = 23296338180.

The previous prime is 34946189699. The next prime is 34946189753. The reversal of 34946189721 is 12798164943.

The square root of 34946189721 is 186939.

It is a perfect power (a square), and thus also a powerful number.

34946189721 is a `hidden beast` number, since 3 + 494 + 6 + 1 + 89 + 72 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-34946189721 is a prime.

It is a super-2 number, since 2×34946189721² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34946189221) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1672066 + ... + 1692836.

Almost surely, 2^34946189721 is an apocalyptic number.

34946189721 is the 186939-th square number.

34946189721 is the 93470-th centered octagonal number.

It is an amenable number.

34946189721 is a deficient number, since it is larger than the sum of its proper divisors (17259891052).

34946189721 is an frugal number, since it uses more digits than its factorization.

34946189721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41554 (or 20774 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 34946189721 in words is "thirty-four billion, nine hundred forty-six million, one hundred eighty-nine thousand, seven hundred twenty-one".