61452544550641 has 4 divisors (see below), whose sum is σ = 61452595025892. Its totient is φ = 61452494075392.

The previous prime is 61452544550611. The next prime is 61452544550647. The reversal of 61452544550641 is 14605544525416.

61452544550641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43946027472400 + 17506517078241 = 6629180^2 + 4184079^2 .

It is a cyclic number.

It is not a de Polignac number, because 61452544550641 - 2¹⁷ = 61452544419569 is a prime.

It is a super-2 number, since 2×61452544550641² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61452544550647) 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 3 ways as a sum of consecutive naturals, for example, 23365096 + ... + 25861801.

It is an arithmetic number, because the mean of its divisors is an integer number (15363148756473).

Almost surely, 2^{61452544550641} is an apocalyptic number.

It is an amenable number.

61452544550641 is a deficient number, since it is larger than the sum of its proper divisors (50475251).

61452544550641 is a wasteful number, since it uses less digits than its factorization.

61452544550641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50475250.

The product of its (nonzero) digits is 11520000, while the sum is 52.

The spelling of 61452544550641 in words is "sixty-one trillion, four hundred fifty-two billion, five hundred forty-four million, five hundred fifty thousand, six hundred forty-one".