3867116781201 has 4 divisors (see below), whose sum is σ = 5156155708272. Its totient is φ = 2578077854132.

The previous prime is 3867116781161. The next prime is 3867116781271. The reversal of 3867116781201 is 1021876117683.

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 3867116781201 - 2²³ = 3867108392593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3867116781271) 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, 644519463531 + ... + 644519463536.

It is an arithmetic number, because the mean of its divisors is an integer number (1289038927068).

Almost surely, 2^{3867116781201} is an apocalyptic number.

It is an amenable number.

3867116781201 is a deficient number, since it is larger than the sum of its proper divisors (1289038927071).

3867116781201 is a wasteful number, since it uses less digits than its factorization.

3867116781201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289038927070.

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 3867116781201 in words is "three trillion, eight hundred sixty-seven billion, one hundred sixteen million, seven hundred eighty-one thousand, two hundred one".