65497941879 has 8 divisors (see below), whose sum is σ = 87968039280. Its totient is φ = 43346569536.

The previous prime is 65497941877. The next prime is 65497941889. The reversal of 65497941879 is 97814979456.

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

It is not a de Polignac number, because 65497941879 - 2¹ = 65497941877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65497941871) 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, 79680784 + ... + 79681605.

It is an arithmetic number, because the mean of its divisors is an integer number (10996004910).

Almost surely, 2^65497941879 is an apocalyptic number.

65497941879 is a deficient number, since it is larger than the sum of its proper divisors (22470097401).

65497941879 is a wasteful number, since it uses less digits than its factorization.

65497941879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159362529.

The product of its digits is 137168640, while the sum is 69.

The spelling of 65497941879 in words is "sixty-five billion, four hundred ninety-seven million, nine hundred forty-one thousand, eight hundred seventy-nine".