1895999990101 has 12 divisors (see below), whose sum is σ = 2206980488352. Its totient is φ = 1624089548088.

The previous prime is 1895999990041. The next prime is 1895999990153. The reversal of 1895999990101 is 1010999995981.

It is not a de Polignac number, because 1895999990101 - 2⁹ = 1895999989589 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 (1895999990501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12462915 + ... + 12614128.

It is an arithmetic number, because the mean of its divisors is an integer number (183915040696).

Almost surely, 2^{1895999990101} is an apocalyptic number.

It is an amenable number.

1895999990101 is a deficient number, since it is larger than the sum of its proper divisors (310980498251).

1895999990101 is a wasteful number, since it uses less digits than its factorization.

1895999990101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25078600 (or 25078593 counting only the distinct ones).

The product of its (nonzero) digits is 21257640, while the sum is 70.

The spelling of 1895999990101 in words is "one trillion, eight hundred ninety-five billion, nine hundred ninety-nine million, nine hundred ninety thousand, one hundred one".