1461871536 has 40 divisors (see below), whose sum is σ = 3940700160. Its totient is φ = 466103616.

The previous prime is 1461871529. The next prime is 1461871549. The reversal of 1461871536 is 6351781641.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660976 + ... + 663183.

It is an arithmetic number, because the mean of its divisors is an integer number (98517504).

Almost surely, 2^1461871536 is an apocalyptic number.

1461871536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1461871536 is an abundant number, since it is smaller than the sum of its proper divisors (2478828624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1461871536 is a wasteful number, since it uses less digits than its factorization.

1461871536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324193 (or 1324187 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 1461871536 is about 38234.4286736444. The cubic root of 1461871536 is about 1134.9317265045.

The spelling of 1461871536 in words is "one billion, four hundred sixty-one million, eight hundred seventy-one thousand, five hundred thirty-six".