8500920740 has 48 divisors (see below), whose sum is σ = 19283436480. Its totient is φ = 3129287040.

The previous prime is 8500920721. The next prime is 8500920761. The reversal of 8500920740 is 470290058.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8500920740.

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 15 ways as a sum of consecutive naturals, for example, 36671 + ... + 135449.

It is an arithmetic number, because the mean of its divisors is an integer number (401738260).

Almost surely, 2^8500920740 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 8500920740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9641718240).

8500920740 is an abundant number, since it is smaller than the sum of its proper divisors (10782515740).

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

8500920740 is a wasteful number, since it uses less digits than its factorization.

8500920740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99132 (or 99130 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 8500920740 is about 92200.4378514549. The cubic root of 8500920740 is about 2040.9012373789.

The spelling of 8500920740 in words is "eight billion, five hundred million, nine hundred twenty thousand, seven hundred forty".