3936849020823 has 4 divisors (see below), whose sum is σ = 5249132027768. Its totient is φ = 2624566013880.

The previous prime is 3936849020807. The next prime is 3936849020851. The reversal of 3936849020823 is 3280209486393.

3936849020823 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3936849020823 - 2⁴ = 3936849020807 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 (3936849020723) 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, 656141503468 + ... + 656141503473.

It is an arithmetic number, because the mean of its divisors is an integer number (1312283006942).

Almost surely, 2^{3936849020823} is an apocalyptic number.

3936849020823 is a deficient number, since it is larger than the sum of its proper divisors (1312283006945).

3936849020823 is a wasteful number, since it uses less digits than its factorization.

3936849020823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312283006944.

The product of its (nonzero) digits is 13436928, while the sum is 57.

The spelling of 3936849020823 in words is "three trillion, nine hundred thirty-six billion, eight hundred forty-nine million, twenty thousand, eight hundred twenty-three".