1587612849 has 16 divisors (see below), whose sum is σ = 2230099200. Its totient is φ = 1001861136.

The previous prime is 1587612809. The next prime is 1587612853. The reversal of 1587612849 is 9482167851.

It is not a de Polignac number, because 1587612849 - 2²⁷ = 1453395121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1587612809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60702 + ... + 82824.

It is an arithmetic number, because the mean of its divisors is an integer number (139381200).

Almost surely, 2^1587612849 is an apocalyptic number.

1587612849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1587612849 is a deficient number, since it is larger than the sum of its proper divisors (642486351).

1587612849 is a wasteful number, since it uses less digits than its factorization.

1587612849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23404.

The product of its digits is 967680, while the sum is 51.

The square root of 1587612849 is about 39844.8597563098. The cubic root of 1587612849 is about 1166.5809181694.

The spelling of 1587612849 in words is "one billion, five hundred eighty-seven million, six hundred twelve thousand, eight hundred forty-nine".