65712969782 has 4 divisors (see below), whose sum is σ = 98569454676. Its totient is φ = 32856484890.

The previous prime is 65712969781. The next prime is 65712969799. The reversal of 65712969782 is 28796921756.

65712969782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65712969781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16428242444 + ... + 16428242447.

It is an arithmetic number, because the mean of its divisors is an integer number (24642363669).

Almost surely, 2^65712969782 is an apocalyptic number.

65712969782 is a deficient number, since it is larger than the sum of its proper divisors (32856484894).

65712969782 is a wasteful number, since it uses less digits than its factorization.

65712969782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32856484893.

The product of its digits is 22861440, while the sum is 62.

The spelling of 65712969782 in words is "sixty-five billion, seven hundred twelve million, nine hundred sixty-nine thousand, seven hundred eighty-two".