8474996640 has 192 divisors, whose sum is σ = 29185132032. Its totient is φ = 2050176000.

The previous prime is 8474996581. The next prime is 8474996657. The reversal of 8474996640 is 466994748.

It is a super-2 number, since 2×8474996640² (a number of 21 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 2971215 + ... + 2974065.

It is an arithmetic number, because the mean of its divisors is an integer number (152005896).

Almost surely, 2^8474996640 is an apocalyptic number.

8474996640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8474996640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14592566016).

8474996640 is an abundant number, since it is smaller than the sum of its proper divisors (20710135392).

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

8474996640 is a wasteful number, since it uses less digits than its factorization.

8474996640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443 (or 3435 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The square root of 8474996640 is about 92059.7449485930. The cubic root of 8474996640 is about 2038.8245054053.

The spelling of 8474996640 in words is "eight billion, four hundred seventy-four million, nine hundred ninety-six thousand, six hundred forty".