65890678311 has 16 divisors (see below), whose sum is σ = 97881817600. Its totient is φ = 43807419864.

The previous prime is 65890678289. The next prime is 65890678349. The reversal of 65890678311 is 11387609856.

It is not a de Polignac number, because 65890678311 - 2⁵ = 65890678279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65890678361) 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 15 ways as a sum of consecutive naturals, for example, 3314881 + ... + 3334698.

It is an arithmetic number, because the mean of its divisors is an integer number (6117613600).

Almost surely, 2^65890678311 is an apocalyptic number.

65890678311 is a deficient number, since it is larger than the sum of its proper divisors (31991139289).

65890678311 is a wasteful number, since it uses less digits than its factorization.

65890678311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649955 (or 6649949 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 65890678311 in words is "sixty-five billion, eight hundred ninety million, six hundred seventy-eight thousand, three hundred eleven".