461884256840 has 16 divisors (see below), whose sum is σ = 1039239577980. Its totient is φ = 184753702720.

The previous prime is 461884256803. The next prime is 461884256849. The reversal of 461884256840 is 48652488164.

It can be written as a sum of positive squares in 2 ways, for example, as 447130267684 + 14753989156 = 668678^2 + 121466^2 .

It is not an unprimeable number, because it can be changed into a prime (461884256849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5773553171 + ... + 5773553250.

Almost surely, 2^461884256840 is an apocalyptic number.

461884256840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

461884256840 is an abundant number, since it is smaller than the sum of its proper divisors (577355321140).

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

461884256840 is a wasteful number, since it uses less digits than its factorization.

461884256840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11547106432 (or 11547106428 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 56.

The spelling of 461884256840 in words is "four hundred sixty-one billion, eight hundred eighty-four million, two hundred fifty-six thousand, eight hundred forty".