1898050663 has 4 divisors (see below), whose sum is σ = 2009700720. Its totient is φ = 1786400608.

The previous prime is 1898050639. The next prime is 1898050703. The reversal of 1898050663 is 3660508981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1898050663 - 2⁵ = 1898050631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898050633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55825003 + ... + 55825036.

It is an arithmetic number, because the mean of its divisors is an integer number (502425180).

Almost surely, 2^1898050663 is an apocalyptic number.

1898050663 is a deficient number, since it is larger than the sum of its proper divisors (111650057).

1898050663 is a wasteful number, since it uses less digits than its factorization.

1898050663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111650056.

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 1898050663 is about 43566.6232682773. The cubic root of 1898050663 is about 1238.1386100623.

The spelling of 1898050663 in words is "one billion, eight hundred ninety-eight million, fifty thousand, six hundred sixty-three".