61059839539 has 16 divisors (see below), whose sum is σ = 66286775520. Its totient is φ = 56017059840.

The previous prime is 61059839537. The next prime is 61059839549. The reversal of 61059839539 is 93593895016.

It is a cyclic number.

It is not a de Polignac number, because 61059839539 - 2¹ = 61059839537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61059839537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765652 + ... + 841630.

It is an arithmetic number, because the mean of its divisors is an integer number (4142923470).

Almost surely, 2^61059839539 is an apocalyptic number.

61059839539 is a deficient number, since it is larger than the sum of its proper divisors (5226935981).

61059839539 is a wasteful number, since it uses less digits than its factorization.

61059839539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77190.

The product of its (nonzero) digits is 7873200, while the sum is 58.

The spelling of 61059839539 in words is "sixty-one billion, fifty-nine million, eight hundred thirty-nine thousand, five hundred thirty-nine".