3947792857883 has 16 divisors (see below), whose sum is σ = 4585846576320. Its totient is φ = 3328262870400.

The previous prime is 3947792857867. The next prime is 3947792857901. The reversal of 3947792857883 is 3887582977493.

It is not a de Polignac number, because 3947792857883 - 2⁴ = 3947792857867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3947792857798 and 3947792857807.

It is not an unprimeable number, because it can be changed into a prime (3947792857823) 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, 20219933 + ... + 20414241.

It is an arithmetic number, because the mean of its divisors is an integer number (286615411020).

Almost surely, 2^{3947792857883} is an apocalyptic number.

3947792857883 is a deficient number, since it is larger than the sum of its proper divisors (638053718437).

3947792857883 is a wasteful number, since it uses less digits than its factorization.

3947792857883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241958.

The product of its digits is 5120962560, while the sum is 80.

The spelling of 3947792857883 in words is "three trillion, nine hundred forty-seven billion, seven hundred ninety-two million, eight hundred fifty-seven thousand, eight hundred eighty-three".