61725567661063 has 8 divisors (see below), whose sum is σ = 62005154620032. Its totient is φ = 61446047967096.

The previous prime is 61725567661061. The next prime is 61725567661067. The reversal of 61725567661063 is 36016676552716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61725567661063 - 2¹ = 61725567661061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61725567660992 and 61725567661010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61725567661061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14976345 + ... + 18647842.

It is an arithmetic number, because the mean of its divisors is an integer number (7750644327504).

Almost surely, 2^{61725567661063} is an apocalyptic number.

61725567661063 is a deficient number, since it is larger than the sum of its proper divisors (279586958969).

61725567661063 is a wasteful number, since it uses less digits than its factorization.

61725567661063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33632501.

The product of its (nonzero) digits is 57153600, while the sum is 61.

The spelling of 61725567661063 in words is "sixty-one trillion, seven hundred twenty-five billion, five hundred sixty-seven million, six hundred sixty-one thousand, sixty-three".