1325290842450 has 144 divisors (see below), whose sum is σ = 3770636018760. Its totient is φ = 332571432960.

The previous prime is 1325290842439. The next prime is 1325290842451. The reversal of 1325290842450 is 542480925231.

1325290842450 is a `hidden beast` number, since 1 + 3 + 2 + 529 + 0 + 84 + 2 + 45 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 170996309289 + 1154294533161 = 413517^2 + 1074381^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1325290842396 and 1325290842405.

It is not an unprimeable number, because it can be changed into a prime (1325290842451) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96666196 + ... + 96679904.

Almost surely, 2^{1325290842450} is an apocalyptic number.

1325290842450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325290842450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1885318009380).

1325290842450 is an abundant number, since it is smaller than the sum of its proper divisors (2445345176310).

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

1325290842450 is a wasteful number, since it uses less digits than its factorization.

1325290842450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381 (or 26373 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 1325290842450 in words is "one trillion, three hundred twenty-five billion, two hundred ninety million, eight hundred forty-two thousand, four hundred fifty".