3613831071149 has 4 divisors (see below), whose sum is σ = 3891818076636. Its totient is φ = 3335844065664.

The previous prime is 3613831071113. The next prime is 3613831071181. The reversal of 3613831071149 is 9411701383163.

3613831071149 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2097529441225 + 1516301629924 = 1448285^2 + 1231382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3613831071149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3613831071199) 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, 138993502724 + ... + 138993502749.

It is an arithmetic number, because the mean of its divisors is an integer number (972954519159).

Almost surely, 2^{3613831071149} is an apocalyptic number.

It is an amenable number.

3613831071149 is a deficient number, since it is larger than the sum of its proper divisors (277987005487).

3613831071149 is a wasteful number, since it uses less digits than its factorization.

3613831071149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277987005486.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 3613831071149 in words is "three trillion, six hundred thirteen billion, eight hundred thirty-one million, seventy-one thousand, one hundred forty-nine".