1461841865 has 16 divisors (see below), whose sum is σ = 1925436096. Its totient is φ = 1056628800.

The previous prime is 1461841841. The next prime is 1461841867. The reversal of 1461841865 is 5681481641.

It is not a de Polignac number, because 1461841865 - 2⁸ = 1461841609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461841867) 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, 72566 + ... + 90495.

It is an arithmetic number, because the mean of its divisors is an integer number (120339756).

Almost surely, 2^1461841865 is an apocalyptic number.

It is an amenable number.

1461841865 is a deficient number, since it is larger than the sum of its proper divisors (463594231).

1461841865 is a wasteful number, since it uses less digits than its factorization.

1461841865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163240.

The product of its digits is 184320, while the sum is 44.

The square root of 1461841865 is about 38234.0406575083. The cubic root of 1461841865 is about 1134.9240480397.

The spelling of 1461841865 in words is "one billion, four hundred sixty-one million, eight hundred forty-one thousand, eight hundred sixty-five".