2036203425891 has 12 divisors (see below), whose sum is σ = 2989398837360. Its totient is φ = 1335215360880.

The previous prime is 2036203425877. The next prime is 2036203425901. The reversal of 2036203425891 is 1985243026302.

2036203425891 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 20 + 3 + 42 + 589 + 1 = 666.

It is not a de Polignac number, because 2036203425891 - 2¹⁴ = 2036203409507 is a prime.

It is a super-2 number, since 2×2036203425891² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2036203425691) 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, 1854465231 + ... + 1854466328.

It is an arithmetic number, because the mean of its divisors is an integer number (249116569780).

Almost surely, 2^{2036203425891} is an apocalyptic number.

2036203425891 is a deficient number, since it is larger than the sum of its proper divisors (953195411469).

2036203425891 is a wasteful number, since it uses less digits than its factorization.

2036203425891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708931626 (or 3708931623 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

Adding to 2036203425891 its sum of digits (45), we get a square (2036203425936 = 1426956²).

The spelling of 2036203425891 in words is "two trillion, thirty-six billion, two hundred three million, four hundred twenty-five thousand, eight hundred ninety-one".