65389057272 has 480 divisors, whose sum is σ = 232395794400. Its totient is φ = 16812956160.

The previous prime is 65389057271. The next prime is 65389057273. The reversal of 65389057272 is 27275098356.

65389057272 is a `hidden beast` number, since 65 + 3 + 8 + 9 + 0 + 572 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (65389057271) and next prime (65389057273).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65389057271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 59824758 + ... + 59825850.

It is an arithmetic number, because the mean of its divisors is an integer number (484157905).

Almost surely, 2^65389057272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65389057272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116197897200).

65389057272 is an abundant number, since it is smaller than the sum of its proper divisors (167006737128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65389057272 is a wasteful number, since it uses less digits than its factorization.

65389057272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 65389057272 in words is "sixty-five billion, three hundred eighty-nine million, fifty-seven thousand, two hundred seventy-two".