64272368706 has 144 divisors (see below), whose sum is σ = 164980701504. Its totient is φ = 16630443648.

The previous prime is 64272368669. The next prime is 64272368717. The reversal of 64272368706 is 60786327246.

It is a super-2 number, since 2×64272368706² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2621155 + ... + 2645561.

It is an arithmetic number, because the mean of its divisors is an integer number (1145699316).

Almost surely, 2^64272368706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64272368706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82490350752).

64272368706 is an abundant number, since it is smaller than the sum of its proper divisors (100708332798).

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

64272368706 is a wasteful number, since it uses less digits than its factorization.

64272368706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24505 (or 24485 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 64272368706 in words is "sixty-four billion, two hundred seventy-two million, three hundred sixty-eight thousand, seven hundred six".