3856070538961 has 4 divisors (see below), whose sum is σ = 3921427666800. Its totient is φ = 3790713411124.

The previous prime is 3856070538953. The next prime is 3856070538967. The reversal of 3856070538961 is 1698350706583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3856070538961 - 2³ = 3856070538953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3856070538961.

It is not an unprimeable number, because it can be changed into a prime (3856070538967) 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, 32678563831 + ... + 32678563948.

It is an arithmetic number, because the mean of its divisors is an integer number (980356916700).

Almost surely, 2^{3856070538961} is an apocalyptic number.

It is an amenable number.

3856070538961 is a deficient number, since it is larger than the sum of its proper divisors (65357127839).

3856070538961 is an equidigital number, since it uses as much as digits as its factorization.

3856070538961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65357127838.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 3856070538961 in words is "three trillion, eight hundred fifty-six billion, seventy million, five hundred thirty-eight thousand, nine hundred sixty-one".