61593681109 has 8 divisors (see below), whose sum is σ = 63623843840. Its totient is φ = 59566222800.

The previous prime is 61593681077. The next prime is 61593681113. The reversal of 61593681109 is 90118639516.

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 61593681109 - 2⁵ = 61593681077 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 (61593601109) 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, 629754 + ... + 720955.

It is an arithmetic number, because the mean of its divisors is an integer number (7952980480).

Almost surely, 2^61593681109 is an apocalyptic number.

It is an amenable number.

61593681109 is a deficient number, since it is larger than the sum of its proper divisors (2030162731).

61593681109 is a wasteful number, since it uses less digits than its factorization.

61593681109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352211.

The product of its (nonzero) digits is 349920, while the sum is 49.

The spelling of 61593681109 in words is "sixty-one billion, five hundred ninety-three million, six hundred eighty-one thousand, one hundred nine".