61389133107 has 8 divisors (see below), whose sum is σ = 81856911360. Its totient is φ = 40923721800.

The previous prime is 61389133097. The next prime is 61389133193. The reversal of 61389133107 is 70133198316.

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

It is not a de Polignac number, because 61389133107 - 2⁷ = 61389132979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61389333107) 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, 530307 + ... + 635612.

It is an arithmetic number, because the mean of its divisors is an integer number (10232113920).

Almost surely, 2^61389133107 is an apocalyptic number.

61389133107 is a deficient number, since it is larger than the sum of its proper divisors (20467778253).

61389133107 is a wasteful number, since it uses less digits than its factorization.

61389133107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183473.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 61389133107 in words is "sixty-one billion, three hundred eighty-nine million, one hundred thirty-three thousand, one hundred seven".