3185726861361 has 8 divisors (see below), whose sum is σ = 4633784525664. Its totient is φ = 1930743552320.

The previous prime is 3185726861353. The next prime is 3185726861431. The reversal of 3185726861361 is 1631686275813.

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

It is not a de Polignac number, because 3185726861361 - 2³ = 3185726861353 is a prime.

It is a super-2 number, since 2×3185726861361² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3185726862361) 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, 48268588776 + ... + 48268588841.

It is an arithmetic number, because the mean of its divisors is an integer number (579223065708).

Almost surely, 2^{3185726861361} is an apocalyptic number.

It is an amenable number.

3185726861361 is a deficient number, since it is larger than the sum of its proper divisors (1448057664303).

3185726861361 is a wasteful number, since it uses less digits than its factorization.

3185726861361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96537177631.

The product of its digits is 8709120, while the sum is 57.

The spelling of 3185726861361 in words is "three trillion, one hundred eighty-five billion, seven hundred twenty-six million, eight hundred sixty-one thousand, three hundred sixty-one".