1641825087 has 32 divisors (see below), whose sum is σ = 2605722624. Its totient is φ = 899942400.

The previous prime is 1641825067. The next prime is 1641825089. The reversal of 1641825087 is 7805281461.

It is not a de Polignac number, because 1641825087 - 2⁷ = 1641824959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641825089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40287 + ... + 70047.

It is an arithmetic number, because the mean of its divisors is an integer number (81428832).

Almost surely, 2^1641825087 is an apocalyptic number.

1641825087 is a deficient number, since it is larger than the sum of its proper divisors (963897537).

1641825087 is a wasteful number, since it uses less digits than its factorization.

1641825087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29879.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 1641825087 is about 40519.4408525093. The cubic root of 1641825087 is about 1179.7110005173.

The spelling of 1641825087 in words is "one billion, six hundred forty-one million, eight hundred twenty-five thousand, eighty-seven".