1641270867 has 8 divisors (see below), whose sum is σ = 2191110096. Its totient is φ = 1092806112.

The previous prime is 1641270859. The next prime is 1641270887. The reversal of 1641270867 is 7680721461.

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

It is not a de Polignac number, because 1641270867 - 2³ = 1641270859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1641270887) 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 7 ways as a sum of consecutive naturals, for example, 340828 + ... + 345609.

It is an arithmetic number, because the mean of its divisors is an integer number (273888762).

Almost surely, 2^1641270867 is an apocalyptic number.

1641270867 is a deficient number, since it is larger than the sum of its proper divisors (549839229).

1641270867 is an equidigital number, since it uses as much as digits as its factorization.

1641270867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687237.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1641270867 is about 40512.6013358807. The cubic root of 1641270867 is about 1179.5782431734.

The spelling of 1641270867 in words is "one billion, six hundred forty-one million, two hundred seventy thousand, eight hundred sixty-seven".