65394772894 has 8 divisors (see below), whose sum is σ = 107009628408. Its totient is φ = 29724896760.

The previous prime is 65394772889. The next prime is 65394772913. The reversal of 65394772894 is 49827749356.

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

It is a congruent number.

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, 1486244817 + ... + 1486244860.

It is an arithmetic number, because the mean of its divisors is an integer number (13376203551).

Almost surely, 2^65394772894 is an apocalyptic number.

65394772894 is a deficient number, since it is larger than the sum of its proper divisors (41614855514).

65394772894 is a wasteful number, since it uses less digits than its factorization.

65394772894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972489690.

The product of its digits is 91445760, while the sum is 64.

The spelling of 65394772894 in words is "sixty-five billion, three hundred ninety-four million, seven hundred seventy-two thousand, eight hundred ninety-four".