461143240046544 has 40 divisors (see below), whose sum is σ = 1299585494678112. Its totient is φ = 139740375771520.

The previous prime is 461143240046543. The next prime is 461143240046551. The reversal of 461143240046544 is 445640042341164.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 461143240046493 and 461143240046502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461143240046543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436688673759 + ... + 436688674814.

Almost surely, 2^{461143240046544} is an apocalyptic number.

461143240046544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

461143240046544 is an abundant number, since it is smaller than the sum of its proper divisors (838442254631568).

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

461143240046544 is a wasteful number, since it uses less digits than its factorization.

461143240046544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873377348595 (or 873377348589 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 48.

The spelling of 461143240046544 in words is "four hundred sixty-one trillion, one hundred forty-three billion, two hundred forty million, forty-six thousand, five hundred forty-four".