65890678312 has 16 divisors (see below), whose sum is σ = 127530345600. Its totient is φ = 31882586160.

The previous prime is 65890678289. The next prime is 65890678349. The reversal of 65890678312 is 21387609856.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132843862 + ... + 132844357.

It is an arithmetic number, because the mean of its divisors is an integer number (7970646600).

Almost surely, 2^65890678312 is an apocalyptic number.

65890678312 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65890678312 is a deficient number, since it is larger than the sum of its proper divisors (61639667288).

65890678312 is a wasteful number, since it uses less digits than its factorization.

65890678312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265688256 (or 265688252 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 65890678312 in words is "sixty-five billion, eight hundred ninety million, six hundred seventy-eight thousand, three hundred twelve".