1850663461 has 2 divisors, whose sum is σ = 1850663462. Its totient is φ = 1850663460.

The previous prime is 1850663413. The next prime is 1850663491. The reversal of 1850663461 is 1643660581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1453896900 + 396766561 = 38130^2 + 19919^2 .

It is an emirp because it is prime and its reverse (1643660581) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1850663461 - 2⁹ = 1850662949 is a prime.

It is a super-3 number, since 3×1850663461³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1850663491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 925331730 + 925331731.

It is an arithmetic number, because the mean of its divisors is an integer number (925331731).

Almost surely, 2^1850663461 is an apocalyptic number.

It is an amenable number.

1850663461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1850663461 is an equidigital number, since it uses as much as digits as its factorization.

1850663461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1850663461 is about 43019.3382213162. The cubic root of 1850663461 is about 1227.7477591760.

The spelling of 1850663461 in words is "one billion, eight hundred fifty million, six hundred sixty-three thousand, four hundred sixty-one".