461611201641678 has 64 divisors (see below), whose sum is σ = 1119683682397440. Its totient is φ = 139803904332000.

The previous prime is 461611201641671. The next prime is 461611201641719. The reversal of 461611201641678 is 876146102116164.

461611201641678 is a `hidden beast` number, since 4 + 6 + 1 + 6 + 11 + 201 + 6 + 416 + 7 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461611201641671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216376473 + ... + 218499428.

It is an arithmetic number, because the mean of its divisors is an integer number (17495057537460).

Almost surely, 2^{461611201641678} is an apocalyptic number.

461611201641678 is an abundant number, since it is smaller than the sum of its proper divisors (658072480755762).

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

461611201641678 is a wasteful number, since it uses less digits than its factorization.

461611201641678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434877710 (or 434877704 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 461611201641678 in words is "four hundred sixty-one trillion, six hundred eleven billion, two hundred one million, six hundred forty-one thousand, six hundred seventy-eight".