65349912859 has 24 divisors (see below), whose sum is σ = 85789810800. Its totient is φ = 49166066880.

The previous prime is 65349912841. The next prime is 65349912871. The reversal of 65349912859 is 95821994356.

65349912859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65349912859 - 2⁵ = 65349912827 is a prime.

It is a super-2 number, since 2×65349912859² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65349912797 and 65349912806.

It is not an unprimeable number, because it can be changed into a prime (65349912839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2074764 + ... + 2106025.

It is an arithmetic number, because the mean of its divisors is an integer number (3574575450).

Almost surely, 2^65349912859 is an apocalyptic number.

65349912859 is a deficient number, since it is larger than the sum of its proper divisors (20439897941).

65349912859 is a wasteful number, since it uses less digits than its factorization.

65349912859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180843 (or 4180836 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 61.

The spelling of 65349912859 in words is "sixty-five billion, three hundred forty-nine million, nine hundred twelve thousand, eight hundred fifty-nine".