9892619890648 has 128 divisors (see below), whose sum is σ = 20881554566400. Its totient is φ = 4355253619200.

The previous prime is 9892619890619. The next prime is 9892619890667. The reversal of 9892619890648 is 8460989162989.

It is a super-3 number, since 3×9892619890648³ (a number of 40 digits) contains 333 as substring.

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, 1819496986 + ... + 1819502422.

It is an arithmetic number, because the mean of its divisors is an integer number (163137145050).

Almost surely, 2^{9892619890648} 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 9892619890648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10440777283200).

9892619890648 is an abundant number, since it is smaller than the sum of its proper divisors (10988934675752).

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

9892619890648 is a wasteful number, since it uses less digits than its factorization.

9892619890648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10641 (or 10637 counting only the distinct ones).

The product of its (nonzero) digits is 967458816, while the sum is 79.

The spelling of 9892619890648 in words is "nine trillion, eight hundred ninety-two billion, six hundred nineteen million, eight hundred ninety thousand, six hundred forty-eight".