65410434381881 has 8 divisors (see below), whose sum is σ = 69189357632640. Its totient is φ = 61709427074592.

The previous prime is 65410434381863. The next prime is 65410434381923. The reversal of 65410434381881 is 18818343401456.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65410434381881 is a prime.

It is a super-2 number, since 2×65410434381881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65410434381811) 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, 19478984141 + ... + 19478987498.

It is an arithmetic number, because the mean of its divisors is an integer number (8648669704080).

Almost surely, 2^{65410434381881} is an apocalyptic number.

It is an amenable number.

65410434381881 is a deficient number, since it is larger than the sum of its proper divisors (3778923250759).

65410434381881 is a wasteful number, since it uses less digits than its factorization.

65410434381881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38957971735.

The product of its (nonzero) digits is 8847360, while the sum is 56.

The spelling of 65410434381881 in words is "sixty-five trillion, four hundred ten billion, four hundred thirty-four million, three hundred eighty-one thousand, eight hundred eighty-one".