1323025686540 has 36 divisors (see below), whose sum is σ = 4013177916384. Its totient is φ = 352806849696.

The previous prime is 1323025686539. The next prime is 1323025686553. The reversal of 1323025686540 is 456865203231.

1323025686540 is a `hidden beast` number, since 1 + 3 + 2 + 3 + 0 + 25 + 6 + 86 + 540 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3675071172 + ... + 3675071531.

It is an arithmetic number, because the mean of its divisors is an integer number (111477164344).

Almost surely, 2^{1323025686540} is an apocalyptic number.

1323025686540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323025686540 is an abundant number, since it is smaller than the sum of its proper divisors (2690152229844).

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

1323025686540 is a wasteful number, since it uses less digits than its factorization.

1323025686540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350142718 (or 7350142713 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 1323025686540 in words is "one trillion, three hundred twenty-three billion, twenty-five million, six hundred eighty-six thousand, five hundred forty".