1461605261632 has 28 divisors (see below), whose sum is σ = 3070983116340. Its totient is φ = 687814240256.

The previous prime is 1461605261609. The next prime is 1461605261639. The reversal of 1461605261632 is 2361625061641.

It can be written as a sum of positive squares in 2 ways, for example, as 1211461240896 + 250144020736 = 1100664^2 + 500144^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461605261639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671692507 + ... + 671694682.

Almost surely, 2^{1461605261632} is an apocalyptic number.

It is an amenable number.

1461605261632 is an abundant number, since it is smaller than the sum of its proper divisors (1609377854708).

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

1461605261632 is a wasteful number, since it uses less digits than its factorization.

1461605261632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343387218 (or 1343387208 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 1461605261632 in words is "one trillion, four hundred sixty-one billion, six hundred five million, two hundred sixty-one thousand, six hundred thirty-two".