61450992789889 has 8 divisors (see below), whose sum is σ = 61771342343040. Its totient is φ = 61131331422000.

The previous prime is 61450992789871. The next prime is 61450992789919. The reversal of 61450992789889 is 98898729905416.

61450992789889 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 61450992789889 - 2¹¹ = 61450992787841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61450992789829) 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, 171867262 + ... + 172224439.

It is an arithmetic number, because the mean of its divisors is an integer number (7721417792880).

Almost surely, 2^{61450992789889} is an apocalyptic number.

It is an amenable number.

61450992789889 is a deficient number, since it is larger than the sum of its proper divisors (320349553151).

61450992789889 is a wasteful number, since it uses less digits than its factorization.

61450992789889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344092631.

The product of its (nonzero) digits is 5643509760, while the sum is 85.

The spelling of 61450992789889 in words is "sixty-one trillion, four hundred fifty billion, nine hundred ninety-two million, seven hundred eighty-nine thousand, eight hundred eighty-nine".