61595817125 has 16 divisors (see below), whose sum is σ = 77424634560. Its totient is φ = 48922131600.

The previous prime is 61595817121. The next prime is 61595817181. The reversal of 61595817125 is 52171859516.

It is not a de Polignac number, because 61595817125 - 2² = 61595817121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61595817121) 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 15 ways as a sum of consecutive naturals, for example, 1755167 + ... + 1789916.

It is an arithmetic number, because the mean of its divisors is an integer number (4839039660).

Almost surely, 2^61595817125 is an apocalyptic number.

It is an amenable number.

61595817125 is a deficient number, since it is larger than the sum of its proper divisors (15828817435).

61595817125 is a wasteful number, since it uses less digits than its factorization.

61595817125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545237 (or 3545227 counting only the distinct ones).

The product of its digits is 756000, while the sum is 50.

The spelling of 61595817125 in words is "sixty-one billion, five hundred ninety-five million, eight hundred seventeen thousand, one hundred twenty-five".