61318452424 has 8 divisors (see below), whose sum is σ = 114972098310. Its totient is φ = 30659226208.

The previous prime is 61318452421. The next prime is 61318452431. The reversal of 61318452424 is 42425481316.

It is a happy number.

61318452424 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 only one way, i.e., 58840204900 + 2478247524 = 242570^2 + 49782^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (61318452421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832403269 + ... + 3832403284.

Almost surely, 2^61318452424 is an apocalyptic number.

It is an amenable number.

61318452424 is a deficient number, since it is larger than the sum of its proper divisors (53653645886).

61318452424 is a wasteful number, since it uses less digits than its factorization.

61318452424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664806559 (or 7664806555 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The spelling of 61318452424 in words is "sixty-one billion, three hundred eighteen million, four hundred fifty-two thousand, four hundred twenty-four".