61452505727 has 4 divisors (see below), whose sum is σ = 61638163176. Its totient is φ = 61266848280.

The previous prime is 61452505703. The next prime is 61452505729. The reversal of 61452505727 is 72750525416.

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

It is a cyclic number.

It is not a de Polignac number, because 61452505727 - 2²⁸ = 61184070271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61452505729) 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, 92828228 + ... + 92828889.

It is an arithmetic number, because the mean of its divisors is an integer number (15409540794).

Almost surely, 2^61452505727 is an apocalyptic number.

61452505727 is a deficient number, since it is larger than the sum of its proper divisors (185657449).

61452505727 is a wasteful number, since it uses less digits than its factorization.

61452505727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185657448.

The product of its (nonzero) digits is 588000, while the sum is 44.

The spelling of 61452505727 in words is "sixty-one billion, four hundred fifty-two million, five hundred five thousand, seven hundred twenty-seven".