30911642910976 has 27 divisors (see below), whose sum is σ = 61702714784221. Its totient is φ = 15455776976896.

The previous prime is 30911642910971. The next prime is 30911642910991. The reversal of 30911642910976 is 67901924611903.

The square root of 30911642910976 is 5559824.

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

It can be written as a sum of positive squares in only one way, i.e., 193445150976 + 30718197760000 = 439824^2 + 5542400^2 .

It is a super-2 number, since 2×30911642910976² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30911642910976.

It is not an unprimeable number, because it can be changed into a prime (30911642910971) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 88783440 + ... + 89130928.

Almost surely, 2^{30911642910976} is an apocalyptic number.

30911642910976 is the 5559824-th square number.

It is an amenable number.

30911642910976 is a deficient number, since it is larger than the sum of its proper divisors (30791071873245).

30911642910976 is an frugal number, since it uses more digits than its factorization.

30911642910976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694994 (or 347491 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The spelling of 30911642910976 in words is "thirty trillion, nine hundred eleven billion, six hundred forty-two million, nine hundred ten thousand, nine hundred seventy-six".