61718732 has 6 divisors (see below), whose sum is σ = 108007788. Its totient is φ = 30859364.

The previous prime is 61718731. The next prime is 61718749. The reversal of 61718732 is 23781716.

61718732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61718692 and 61718701.

It is not an unprimeable number, because it can be changed into a prime (61718731) by changing a digit.

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 as a sum of consecutive naturals, namely, 7714838 + ... + 7714845.

It is an arithmetic number, because the mean of its divisors is an integer number (18001298).

Almost surely, 2^61718732 is an apocalyptic number.

It is an amenable number.

61718732 is a deficient number, since it is larger than the sum of its proper divisors (46289056).

61718732 is a wasteful number, since it uses less digits than its factorization.

61718732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15429687 (or 15429685 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 61718732 is about 7856.1270356328. The cubic root of 61718732 is about 395.1897438016.

The spelling of 61718732 in words is "sixty-one million, seven hundred eighteen thousand, seven hundred thirty-two".