8951921742 has 16 divisors (see below), whose sum is σ = 17956974672. Its totient is φ = 2975118720.

The previous prime is 8951921731. The next prime is 8951921749. The reversal of 8951921742 is 2471291598.

It is a happy number.

8951921742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8951921691 and 8951921700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8951921749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211609 + ... + 2215652.

It is an arithmetic number, because the mean of its divisors is an integer number (1122310917).

Almost surely, 2^8951921742 is an apocalyptic number.

8951921742 is an abundant number, since it is smaller than the sum of its proper divisors (9005052930).

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

8951921742 is a wasteful number, since it uses less digits than its factorization.

8951921742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427603.

The product of its digits is 362880, while the sum is 48.

The square root of 8951921742 is about 94614.5958190384. The cubic root of 8951921742 is about 2076.3732520577.

The spelling of 8951921742 in words is "eight billion, nine hundred fifty-one million, nine hundred twenty-one thousand, seven hundred forty-two".