1513545885887 has 8 divisors (see below), whose sum is σ = 1729920260256. Its totient is φ = 1297209894912.

The previous prime is 1513545885881. The next prime is 1513545885967. The reversal of 1513545885887 is 7885885453151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1513545885887 - 2²² = 1513541691583 is a prime.

It is a super-2 number, since 2×1513545885887² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513545885881) 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, 9511298 + ... + 9669119.

It is an arithmetic number, because the mean of its divisors is an integer number (216240032532).

Almost surely, 2^{1513545885887} is an apocalyptic number.

1513545885887 is a deficient number, since it is larger than the sum of its proper divisors (216374374369).

1513545885887 is a wasteful number, since it uses less digits than its factorization.

1513545885887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19191697.

The product of its digits is 215040000, while the sum is 68.

The spelling of 1513545885887 in words is "one trillion, five hundred thirteen billion, five hundred forty-five million, eight hundred eighty-five thousand, eight hundred eighty-seven".