2975948681 has 2 divisors, whose sum is σ = 2975948682. Its totient is φ = 2975948680.

The previous prime is 2975948671. The next prime is 2975948693. The reversal of 2975948681 is 1868495792.

2975948681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1671583225 + 1304365456 = 40885^2 + 36116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2975948681 is a prime.

It is a super-2 number, since 2×2975948681² = 17712541103891279522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2975948681.

It is not a weakly prime, because it can be changed into another prime (2975948641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1487974340 + 1487974341.

It is an arithmetic number, because the mean of its divisors is an integer number (1487974341).

Almost surely, 2^2975948681 is an apocalyptic number.

It is an amenable number.

2975948681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2975948681 is an equidigital number, since it uses as much as digits as its factorization.

2975948681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 59.

The square root of 2975948681 is about 54552.2564244597. The cubic root of 2975948681 is about 1438.3850015596.

The spelling of 2975948681 in words is "two billion, nine hundred seventy-five million, nine hundred forty-eight thousand, six hundred eighty-one".