61183368319 has 8 divisors (see below), whose sum is σ = 61273771920. Its totient is φ = 61093002816.

The previous prime is 61183368299. The next prime is 61183368329. The reversal of 61183368319 is 91386338116.

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 61183368319 - 2⁵ = 61183368287 is a prime.

It is a super-2 number, since 2×61183368319² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61183368329) 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, 5149824 + ... + 5161690.

It is an arithmetic number, because the mean of its divisors is an integer number (7659221490).

Almost surely, 2^61183368319 is an apocalyptic number.

61183368319 is a deficient number, since it is larger than the sum of its proper divisors (90403601).

61183368319 is a wasteful number, since it uses less digits than its factorization.

61183368319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19049.

The product of its digits is 559872, while the sum is 49.

The spelling of 61183368319 in words is "sixty-one billion, one hundred eighty-three million, three hundred sixty-eight thousand, three hundred nineteen".