8948866640 has 320 divisors, whose sum is σ = 26161325568. Its totient is φ = 2777088000.

The previous prime is 8948866637. The next prime is 8948866687. The reversal of 8948866640 is 466688498.

It is a self number, because there is not a number n which added to its sum of digits gives 8948866640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39422207 + ... + 39422433.

Almost surely, 2^8948866640 is an apocalyptic number.

8948866640 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 8948866640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13080662784).

8948866640 is an abundant number, since it is smaller than the sum of its proper divisors (17212458928).

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

8948866640 is a wasteful number, since it uses less digits than its factorization.

8948866640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 59.

The square root of 8948866640 is about 94598.4494587517. The cubic root of 8948866640 is about 2076.1370177223.

The spelling of 8948866640 in words is "eight billion, nine hundred forty-eight million, eight hundred sixty-six thousand, six hundred forty".