1345720044408 has 32 divisors (see below), whose sum is σ = 3421322150400. Its totient is φ = 440970409568.

The previous prime is 1345720044379. The next prime is 1345720044419. The reversal of 1345720044408 is 8044400275431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345720044408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475182216 + ... + 475185047.

It is an arithmetic number, because the mean of its divisors is an integer number (106916317200).

Almost surely, 2^{1345720044408} is an apocalyptic number.

It is an amenable number.

1345720044408 is an abundant number, since it is smaller than the sum of its proper divisors (2075602105992).

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

1345720044408 is a wasteful number, since it uses less digits than its factorization.

1345720044408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950367331 (or 950367327 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 1345720044408 in words is "one trillion, three hundred forty-five billion, seven hundred twenty million, forty-four thousand, four hundred eight".