61026796309 has 8 divisors (see below), whose sum is σ = 61176821400. Its totient is φ = 60876834816.

The previous prime is 61026796307. The next prime is 61026796343. The reversal of 61026796309 is 90369762016.

61026796309 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 4 ways, for example, as 2776973809 + 58249822500 = 52697^2 + 241350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61026796309 - 2¹ = 61026796307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61026796307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2320377 + ... + 2346529.

It is an arithmetic number, because the mean of its divisors is an integer number (7647102675).

Almost surely, 2^61026796309 is an apocalyptic number.

It is an amenable number.

61026796309 is a deficient number, since it is larger than the sum of its proper divisors (150025091).

61026796309 is a wasteful number, since it uses less digits than its factorization.

61026796309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31799.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 61026796309 in words is "sixty-one billion, twenty-six million, seven hundred ninety-six thousand, three hundred nine".