8749641601 has 2 divisors, whose sum is σ = 8749641602. Its totient is φ = 8749641600.

The previous prime is 8749641553. The next prime is 8749641653. The reversal of 8749641601 is 1061469478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7478790400 + 1270851201 = 86480^2 + 35649^2 .

It is a cyclic number.

It is not a de Polignac number, because 8749641601 - 2⁷ = 8749641473 is a prime.

It is not a weakly prime, because it can be changed into another prime (8749641671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4374820800 + 4374820801.

It is an arithmetic number, because the mean of its divisors is an integer number (4374820801).

Almost surely, 2^8749641601 is an apocalyptic number.

It is an amenable number.

8749641601 is a deficient number, since it is larger than the sum of its proper divisors (1).

8749641601 is an equidigital number, since it uses as much as digits as its factorization.

8749641601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 8749641601 is about 93539.5189264944. The cubic root of 8749641601 is about 2060.6145149577.

The spelling of 8749641601 in words is "eight billion, seven hundred forty-nine million, six hundred forty-one thousand, six hundred one".