61310685723 has 16 divisors (see below), whose sum is σ = 95188559616. Its totient is φ = 34373645280.

The previous prime is 61310685697. The next prime is 61310685727. The reversal of 61310685723 is 32758601316.

61310685723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61310685723 - 2⁶ = 61310685659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61310685727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27541873 + ... + 27544098.

It is an arithmetic number, because the mean of its divisors is an integer number (5949284976).

Almost surely, 2^61310685723 is an apocalyptic number.

61310685723 is a deficient number, since it is larger than the sum of its proper divisors (33877873893).

61310685723 is a wasteful number, since it uses less digits than its factorization.

61310685723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55086034.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 61310685723 in words is "sixty-one billion, three hundred ten million, six hundred eighty-five thousand, seven hundred twenty-three".