65889237434 has 4 divisors (see below), whose sum is σ = 98833856154. Its totient is φ = 32944618716.

The previous prime is 65889237431. The next prime is 65889237497. The reversal of 65889237434 is 43473298856.

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

It can be written as a sum of positive squares in only one way, i.e., 53446504225 + 12442733209 = 231185^2 + 111547^2 .

It is not an unprimeable number, because it can be changed into a prime (65889237431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16472309357 + ... + 16472309360.

Almost surely, 2^65889237434 is an apocalyptic number.

65889237434 is a deficient number, since it is larger than the sum of its proper divisors (32944618720).

65889237434 is a wasteful number, since it uses less digits than its factorization.

65889237434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32944618719.

The product of its digits is 34836480, while the sum is 59.

The spelling of 65889237434 in words is "sixty-five billion, eight hundred eighty-nine million, two hundred thirty-seven thousand, four hundred thirty-four".