3835564867849 has 8 divisors (see below), whose sum is σ = 4506118166592. Its totient is φ = 3218655833040.

The previous prime is 3835564867837. The next prime is 3835564867931. The reversal of 3835564867849 is 9487684655383.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3835564867849 - 2²³ = 3835556479241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3835564867049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13411065829 + ... + 13411066114.

It is an arithmetic number, because the mean of its divisors is an integer number (563264770824).

Almost surely, 2^{3835564867849} is an apocalyptic number.

It is an amenable number.

3835564867849 is a deficient number, since it is larger than the sum of its proper divisors (670553298743).

3835564867849 is a wasteful number, since it uses less digits than its factorization.

3835564867849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26822131967.

The product of its digits is 4180377600, while the sum is 76.

The spelling of 3835564867849 in words is "three trillion, eight hundred thirty-five billion, five hundred sixty-four million, eight hundred sixty-seven thousand, eight hundred forty-nine".