61513810532 has 24 divisors (see below), whose sum is σ = 108212810496. Its totient is φ = 30596071968.

The previous prime is 61513810511. The next prime is 61513810543. The reversal of 61513810532 is 23501831516.

It is a junction number, because it is equal to n+sod(n) for n = 61513810492 and 61513810501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1199603 + ... + 1249829.

It is an arithmetic number, because the mean of its divisors is an integer number (4508867104).

Almost surely, 2^61513810532 is an apocalyptic number.

It is an amenable number.

61513810532 is a deficient number, since it is larger than the sum of its proper divisors (46698999964).

61513810532 is a wasteful number, since it uses less digits than its factorization.

61513810532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51827 (or 51825 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 61513810532 in words is "sixty-one billion, five hundred thirteen million, eight hundred ten thousand, five hundred thirty-two".