3698045261 has 2 divisors, whose sum is σ = 3698045262. Its totient is φ = 3698045260.

The previous prime is 3698045249. The next prime is 3698045303. The reversal of 3698045261 is 1625408963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3695424100 + 2621161 = 60790^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 3698045261 - 2¹⁰ = 3698044237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3698045861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849022630 + 1849022631.

It is an arithmetic number, because the mean of its divisors is an integer number (1849022631).

Almost surely, 2^3698045261 is an apocalyptic number.

It is an amenable number.

3698045261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3698045261 is an equidigital number, since it uses as much as digits as its factorization.

3698045261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 3698045261 is about 60811.5553246256. Note that the first 3 decimals coincide. The cubic root of 3698045261 is about 1546.4079513374.

The spelling of 3698045261 in words is "three billion, six hundred ninety-eight million, forty-five thousand, two hundred sixty-one".