65894771830 has 16 divisors (see below), whose sum is σ = 118625891904. Its totient is φ = 26354508160.

The previous prime is 65894771797. The next prime is 65894771857. The reversal of 65894771830 is 3817749856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342931 + ... + 499390.

It is an arithmetic number, because the mean of its divisors is an integer number (7414118244).

Almost surely, 2^65894771830 is an apocalyptic number.

65894771830 is a deficient number, since it is larger than the sum of its proper divisors (52731120074).

65894771830 is a wasteful number, since it uses less digits than its factorization.

65894771830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850151.

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 65894771830 in words is "sixty-five billion, eight hundred ninety-four million, seven hundred seventy-one thousand, eight hundred thirty".