61143897189913 has 8 divisors (see below), whose sum is σ = 62180357752800. Its totient is φ = 60107440737888.

The previous prime is 61143897189871. The next prime is 61143897189923. The reversal of 61143897189913 is 31998179834116.

61143897189913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61143897189913 - 2²⁹ = 61143360319001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61143897189923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51746970 + ... + 52915372.

It is an arithmetic number, because the mean of its divisors is an integer number (7772544719100).

Almost surely, 2^{61143897189913} is an apocalyptic number.

It is an amenable number.

61143897189913 is a deficient number, since it is larger than the sum of its proper divisors (1036460562887).

61143897189913 is a wasteful number, since it uses less digits than its factorization.

61143897189913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055431.

The product of its digits is 70543872, while the sum is 70.

The spelling of 61143897189913 in words is "sixty-one trillion, one hundred forty-three billion, eight hundred ninety-seven million, one hundred eighty-nine thousand, nine hundred thirteen".