1538265413187 has 10 divisors (see below), whose sum is σ = 2297902654388. Its totient is φ = 1025510275404.

The previous prime is 1538265413161. The next prime is 1538265413221. The reversal of 1538265413187 is 7813145628351.

1538265413187 is a `hidden beast` number, since 1 + 5 + 3 + 82 + 6 + 541 + 3 + 18 + 7 = 666.

It is not a de Polignac number, because 1538265413187 - 2¹⁵ = 1538265380419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1538265413147) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9495465433 + ... + 9495465594.

Almost surely, 2^{1538265413187} is an apocalyptic number.

1538265413187 is a deficient number, since it is larger than the sum of its proper divisors (759637241201).

1538265413187 is an equidigital number, since it uses as much as digits as its factorization.

1538265413187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18990931039 (or 18990931030 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 1538265413187 in words is "one trillion, five hundred thirty-eight billion, two hundred sixty-five million, four hundred thirteen thousand, one hundred eighty-seven".