61042109361 has 8 divisors (see below), whose sum is σ = 81391449120. Its totient is φ = 40693754592.

The previous prime is 61042109341. The next prime is 61042109413. The reversal of 61042109361 is 16390124016.

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

It is not a de Polignac number, because 61042109361 - 2⁵ = 61042109329 is a prime.

It is a super-2 number, since 2×61042109361² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61042109341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86916 + ... + 360053.

It is an arithmetic number, because the mean of its divisors is an integer number (10173931140).

Almost surely, 2^61042109361 is an apocalyptic number.

It is an amenable number.

61042109361 is a deficient number, since it is larger than the sum of its proper divisors (20349339759).

61042109361 is a wasteful number, since it uses less digits than its factorization.

61042109361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492495.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 61042109361 in words is "sixty-one billion, forty-two million, one hundred nine thousand, three hundred sixty-one".