61637260673204 has 6 divisors (see below), whose sum is σ = 107865206178114. Its totient is φ = 30818630336600.

The previous prime is 61637260673201. The next prime is 61637260673231. The reversal of 61637260673204 is 40237606273616.

It can be written as a sum of positive squares in only one way, i.e., 38264096896804 + 23373163776400 = 6185798^2 + 4834580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61637260673201) 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 as a sum of consecutive naturals, namely, 7704657584147 + ... + 7704657584154.

It is an arithmetic number, because the mean of its divisors is an integer number (17977534363019).

Almost surely, 2^{61637260673204} is an apocalyptic number.

It is an amenable number.

61637260673204 is a deficient number, since it is larger than the sum of its proper divisors (46227945504910).

61637260673204 is a wasteful number, since it uses less digits than its factorization.

61637260673204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15409315168305 (or 15409315168303 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 53.

The spelling of 61637260673204 in words is "sixty-one trillion, six hundred thirty-seven billion, two hundred sixty million, six hundred seventy-three thousand, two hundred four".