3857016111643 has 4 divisors (see below), whose sum is σ = 3857025694680. Its totient is φ = 3857006528608.

The previous prime is 3857016111631. The next prime is 3857016111661. The reversal of 3857016111643 is 3461116107583.

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

It is a cyclic number.

It is not a de Polignac number, because 3857016111643 - 2⁹ = 3857016111131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3857016111593 and 3857016111602.

It is not an unprimeable number, because it can be changed into a prime (3857016121643) 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, 4160053 + ... + 5002006.

It is an arithmetic number, because the mean of its divisors is an integer number (964256423670).

Almost surely, 2^{3857016111643} is an apocalyptic number.

3857016111643 is a deficient number, since it is larger than the sum of its proper divisors (9583037).

3857016111643 is an equidigital number, since it uses as much as digits as its factorization.

3857016111643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583036.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 3857016111643 in words is "three trillion, eight hundred fifty-seven billion, sixteen million, one hundred eleven thousand, six hundred forty-three".