1001791528320 has 256 divisors, whose sum is σ = 3505701876480. Its totient is φ = 241310883840.

The previous prime is 1001791528273. The next prime is 1001791528349. The reversal of 1001791528320 is 238251971001.

It is a happy number.

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, 3164779 + ... + 3466901.

It is an arithmetic number, because the mean of its divisors is an integer number (13694147955).

Almost surely, 2^{1001791528320} is an apocalyptic number.

1001791528320 is a gapful number since it is divisible by the number (10) 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 1001791528320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752850938240).

1001791528320 is an abundant number, since it is smaller than the sum of its proper divisors (2503910348160).

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

1001791528320 is a wasteful number, since it uses less digits than its factorization.

1001791528320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302313 (or 302301 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 1001791528320 in words is "one trillion, one billion, seven hundred ninety-one million, five hundred twenty-eight thousand, three hundred twenty".