8991626798628 has 48 divisors (see below), whose sum is σ = 23314648008960. Its totient is φ = 2996820264672.

The previous prime is 8991626798621. The next prime is 8991626798629. The reversal of 8991626798628 is 8268976261998.

It is not an unprimeable number, because it can be changed into a prime (8991626798621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4560876 + ... + 6227747.

It is an arithmetic number, because the mean of its divisors is an integer number (485721833520).

Almost surely, 2^{8991626798628} is an apocalyptic number.

It is an amenable number.

8991626798628 is an abundant number, since it is smaller than the sum of its proper divisors (14323021210332).

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

8991626798628 is a wasteful number, since it uses less digits than its factorization.

8991626798628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10796353 (or 10796345 counting only the distinct ones).

The product of its digits is 2257403904, while the sum is 81.

The spelling of 8991626798628 in words is "eight trillion, nine hundred ninety-one billion, six hundred twenty-six million, seven hundred ninety-eight thousand, six hundred twenty-eight".