61759814125 has 8 divisors (see below), whose sum is σ = 77076248184. Its totient is φ = 49407851200.

The previous prime is 61759814119. The next prime is 61759814147. The reversal of 61759814125 is 52141895716.

It can be written as a sum of positive squares in 4 ways, for example, as 4886149801 + 56873664324 = 69901^2 + 238482^2 .

It is not a de Polignac number, because 61759814125 - 2⁵ = 61759814093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247039132 + ... + 247039381.

It is an arithmetic number, because the mean of its divisors is an integer number (9634531023).

Almost surely, 2^61759814125 is an apocalyptic number.

It is an amenable number.

61759814125 is a deficient number, since it is larger than the sum of its proper divisors (15316434059).

61759814125 is an equidigital number, since it uses as much as digits as its factorization.

61759814125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494078528 (or 494078518 counting only the distinct ones).

The product of its digits is 604800, while the sum is 49.

The spelling of 61759814125 in words is "sixty-one billion, seven hundred fifty-nine million, eight hundred fourteen thousand, one hundred twenty-five".