61534563630441 has 16 divisors (see below), whose sum is σ = 89504980715520. Its totient is φ = 37293607890320.

The previous prime is 61534563630427. The next prime is 61534563630443. The reversal of 61534563630441 is 14403636543516.

It is a cyclic number.

It is not a de Polignac number, because 61534563630441 - 2⁷ = 61534563630313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61534563630443) 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 15 ways as a sum of consecutive naturals, for example, 21918220 + ... + 24565778.

It is an arithmetic number, because the mean of its divisors is an integer number (5594061294720).

Almost surely, 2^{61534563630441} is an apocalyptic number.

It is an amenable number.

61534563630441 is a deficient number, since it is larger than the sum of its proper divisors (27970417085079).

61534563630441 is a wasteful number, since it uses less digits than its factorization.

61534563630441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351876.

The product of its (nonzero) digits is 9331200, while the sum is 51.

The spelling of 61534563630441 in words is "sixty-one trillion, five hundred thirty-four billion, five hundred sixty-three million, six hundred thirty thousand, four hundred forty-one".