8491846740 has 192 divisors, whose sum is σ = 26620876800. Its totient is φ = 2008442880.

The previous prime is 8491846723. The next prime is 8491846763. The reversal of 8491846740 is 476481948.

It is a super-2 number, since 2×8491846740² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3601642 + ... + 3603998.

It is an arithmetic number, because the mean of its divisors is an integer number (138650400).

Almost surely, 2^8491846740 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 8491846740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13310438400).

8491846740 is an abundant number, since it is smaller than the sum of its proper divisors (18129030060).

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

8491846740 is a wasteful number, since it uses less digits than its factorization.

8491846740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 8491846740 is about 92151.2167038504. The cubic root of 8491846740 is about 2040.1748168142.

The spelling of 8491846740 in words is "eight billion, four hundred ninety-one million, eight hundred forty-six thousand, seven hundred forty".