1538514171087 has 16 divisors (see below), whose sum is σ = 2059301244000. Its totient is φ = 1021708468224.

The previous prime is 1538514171043. The next prime is 1538514171101. The reversal of 1538514171087 is 7801714158351.

It is not a de Polignac number, because 1538514171087 - 2⁷ = 1538514170959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538514175087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40239 + ... + 1754607.

It is an arithmetic number, because the mean of its divisors is an integer number (128706327750).

Almost surely, 2^{1538514171087} is an apocalyptic number.

1538514171087 is a deficient number, since it is larger than the sum of its proper divisors (520787072913).

1538514171087 is a wasteful number, since it uses less digits than its factorization.

1538514171087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715530.

The product of its (nonzero) digits is 940800, while the sum is 51.

The spelling of 1538514171087 in words is "one trillion, five hundred thirty-eight billion, five hundred fourteen million, one hundred seventy-one thousand, eighty-seven".