1313645071040 has 56 divisors (see below), whose sum is σ = 3130489913760. Its totient is φ = 525059483648.

The previous prime is 1313645071033. The next prime is 1313645071049. The reversal of 1313645071040 is 401705463131.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1313645071049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134077 + ... + 1978236.

Almost surely, 2^{1313645071040} is an apocalyptic number.

1313645071040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313645071040 is an abundant number, since it is smaller than the sum of its proper divisors (1816844842720).

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

1313645071040 is a wasteful number, since it uses less digits than its factorization.

1313645071040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113649 (or 3113639 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 1313645071040 in words is "one trillion, three hundred thirteen billion, six hundred forty-five million, seventy-one thousand, forty".