61031726116 has 27 divisors (see below), whose sum is σ = 107961747313. Its totient is φ = 30189021200.

The previous prime is 61031726101. The next prime is 61031726131. The reversal of 61031726116 is 61162713016.

The square root of 61031726116 is 247046.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (61031726101) and next prime (61031726131).

It can be written as a sum of positive squares in only one way, i.e., 58638559716 + 2393166400 = 242154^2 + 48920^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 49902681 + ... + 49903903.

Almost surely, 2^61031726116 is an apocalyptic number.

61031726116 is the 247046-th square number.

It is an amenable number.

61031726116 is a deficient number, since it is larger than the sum of its proper divisors (46930021197).

61031726116 is an equidigital number, since it uses as much as digits as its factorization.

61031726116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 61031726116 in words is "sixty-one billion, thirty-one million, seven hundred twenty-six thousand, one hundred sixteen".