1002835489656 has 256 divisors, whose sum is σ = 3378335708160. Its totient is φ = 239570472960.

The previous prime is 1002835489633. The next prime is 1002835489697. The reversal of 1002835489656 is 6569845382001.

It is a junction number, because it is equal to n+sod(n) for n = 1002835489596 and 1002835489605.

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, 6579300 + ... + 6729996.

It is an arithmetic number, because the mean of its divisors is an integer number (13196623860).

Almost surely, 2^{1002835489656} 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 1002835489656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689167854080).

1002835489656 is an abundant number, since it is smaller than the sum of its proper divisors (2375500218504).

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

1002835489656 is a wasteful number, since it uses less digits than its factorization.

1002835489656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151014 (or 151010 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 57.

The spelling of 1002835489656 in words is "one trillion, two billion, eight hundred thirty-five million, four hundred eighty-nine thousand, six hundred fifty-six".