1513581897940 has 24 divisors (see below), whose sum is σ = 3632596555392. Its totient is φ = 518942364960.

The previous prime is 1513581897929. The next prime is 1513581897967. The reversal of 1513581897940 is 497981853151.

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, 5405649496 + ... + 5405649775.

It is an arithmetic number, because the mean of its divisors is an integer number (151358189808).

Almost surely, 2^{1513581897940} is an apocalyptic number.

1513581897940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1513581897940 is an abundant number, since it is smaller than the sum of its proper divisors (2119014657452).

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

1513581897940 is a wasteful number, since it uses less digits than its factorization.

1513581897940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811299287 (or 10811299285 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 61.

The spelling of 1513581897940 in words is "one trillion, five hundred thirteen billion, five hundred eighty-one million, eight hundred ninety-seven thousand, nine hundred forty".