1326280494140 has 48 divisors (see below), whose sum is σ = 3248033880000. Its totient is φ = 454724738496.

The previous prime is 1326280494139. The next prime is 1326280494167. The reversal of 1326280494140 is 414940826231.

It is a junction number, because it is equal to n+sod(n) for n = 1326280494091 and 1326280494100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96660815 + ... + 96674534.

It is an arithmetic number, because the mean of its divisors is an integer number (67667372500).

Almost surely, 2^{1326280494140} is an apocalyptic number.

1326280494140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326280494140 is an abundant number, since it is smaller than the sum of its proper divisors (1921753385860).

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

1326280494140 is a wasteful number, since it uses less digits than its factorization.

1326280494140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193335379 (or 193335363 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 1326280494140 in words is "one trillion, three hundred twenty-six billion, two hundred eighty million, four hundred ninety-four thousand, one hundred forty".