61313099684 has 6 divisors (see below), whose sum is σ = 107297924454. Its totient is φ = 30656549840.

The previous prime is 61313099681. The next prime is 61313099719. The reversal of 61313099684 is 48699031316.

61313099684 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., 45061949284 + 16251150400 = 212278^2 + 127480^2 .

It is not an unprimeable number, because it can be changed into a prime (61313099681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7664137457 + ... + 7664137464.

It is an arithmetic number, because the mean of its divisors is an integer number (17882987409).

Almost surely, 2^61313099684 is an apocalyptic number.

It is an amenable number.

61313099684 is a deficient number, since it is larger than the sum of its proper divisors (45984824770).

61313099684 is a wasteful number, since it uses less digits than its factorization.

61313099684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15328274925 (or 15328274923 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 61313099684 in words is "sixty-one billion, three hundred thirteen million, ninety-nine thousand, six hundred eighty-four".