8972145722 has 16 divisors (see below), whose sum is σ = 13639408992. Its totient is φ = 4426072560.

The previous prime is 8972145719. The next prime is 8972145727. The reversal of 8972145722 is 2275412798.

It is not an unprimeable number, because it can be changed into a prime (8972145727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53648 + ... + 144299.

It is an arithmetic number, because the mean of its divisors is an integer number (852463062).

Almost surely, 2^8972145722 is an apocalyptic number.

8972145722 is a deficient number, since it is larger than the sum of its proper divisors (4667263270).

8972145722 is a wasteful number, since it uses less digits than its factorization.

8972145722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198253.

The product of its digits is 564480, while the sum is 47.

The square root of 8972145722 is about 94721.4111064653. The cubic root of 8972145722 is about 2077.9357079229.

The spelling of 8972145722 in words is "eight billion, nine hundred seventy-two million, one hundred forty-five thousand, seven hundred twenty-two".