2350640681 has 2 divisors, whose sum is σ = 2350640682. Its totient is φ = 2350640680.

The previous prime is 2350640639. The next prime is 2350640693. The reversal of 2350640681 is 1860460532.

2350640681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2335305625 + 15335056 = 48325^2 + 3916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2350640681 is a prime.

It is a super-2 number, since 2×2350640681² = 11051023222344287522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2350642681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175320340 + 1175320341.

It is an arithmetic number, because the mean of its divisors is an integer number (1175320341).

Almost surely, 2^2350640681 is an apocalyptic number.

It is an amenable number.

2350640681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2350640681 is an equidigital number, since it uses as much as digits as its factorization.

2350640681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2350640681 is about 48483.4062437861. The cubic root of 2350640681 is about 1329.6237051422.

The spelling of 2350640681 in words is "two billion, three hundred fifty million, six hundred forty thousand, six hundred eighty-one".