1894065801 has 16 divisors (see below), whose sum is σ = 2638040064. Its totient is φ = 1206518544.

The previous prime is 1894065791. The next prime is 1894065809. The reversal of 1894065801 is 1085604981.

It is not a de Polignac number, because 1894065801 - 2¹¹ = 1894063753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1894065809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52530 + ... + 80916.

It is an arithmetic number, because the mean of its divisors is an integer number (164877504).

Almost surely, 2^1894065801 is an apocalyptic number.

It is an amenable number.

1894065801 is a deficient number, since it is larger than the sum of its proper divisors (743974263).

1894065801 is a wasteful number, since it uses less digits than its factorization.

1894065801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29380.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1894065801 is about 43520.8662712497. The cubic root of 1894065801 is about 1237.2715330501.

The spelling of 1894065801 in words is "one billion, eight hundred ninety-four million, sixty-five thousand, eight hundred one".