61311404231624 has 16 divisors (see below), whose sum is σ = 114992804166300. Its totient is φ = 30646656453952.

The previous prime is 61311404231599. The next prime is 61311404231639. The reversal of 61311404231624 is 42613240411316.

61311404231624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61310184126724 + 1220104900 = 7830082^2 + 34930^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130678927 + ... + 1130733150.

Almost surely, 2^{61311404231624} is an apocalyptic number.

It is an amenable number.

61311404231624 is a deficient number, since it is larger than the sum of its proper divisors (53681399934676).

61311404231624 is a wasteful number, since it uses less digits than its factorization.

61311404231624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261415472 (or 2261415468 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 61311404231624 in words is "sixty-one trillion, three hundred eleven billion, four hundred four million, two hundred thirty-one thousand, six hundred twenty-four".