1325039677920 has 864 divisors, whose sum is σ = 5380005863232. Its totient is φ = 296864096256.

The previous prime is 1325039677909. The next prime is 1325039677981. The reversal of 1325039677920 is 297769305231.

1325039677920 is a `hidden beast` number, since 1 + 3 + 2 + 503 + 9 + 67 + 79 + 2 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1282709724 + ... + 1282710756.

It is an arithmetic number, because the mean of its divisors is an integer number (6226858638).

Almost surely, 2^{1325039677920} is an apocalyptic number.

1325039677920 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 1325039677920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2690002931616).

1325039677920 is an abundant number, since it is smaller than the sum of its proper divisors (4054966185312).

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

1325039677920 is an equidigital number, since it uses as much as digits as its factorization.

1325039677920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 1325039677920 in words is "one trillion, three hundred twenty-five billion, thirty-nine million, six hundred seventy-seven thousand, nine hundred twenty".