8990507548920 has 128 divisors (see below), whose sum is σ = 27432369792000. Its totient is φ = 2356515463680.

The previous prime is 8990507548909. The next prime is 8990507548931. The reversal of 8990507548920 is 298457050998.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8990507548909) and next prime (8990507548931).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54851890 + ... + 55015550.

It is an arithmetic number, because the mean of its divisors is an integer number (214315389000).

Almost surely, 2^{8990507548920} 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 8990507548920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13716184896000).

8990507548920 is an abundant number, since it is smaller than the sum of its proper divisors (18441862243080).

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

8990507548920 is a wasteful number, since it uses less digits than its factorization.

8990507548920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171493 (or 171489 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 66.

The spelling of 8990507548920 in words is "eight trillion, nine hundred ninety billion, five hundred seven million, five hundred forty-eight thousand, nine hundred twenty".