61796030405 has 8 divisors (see below), whose sum is σ = 74276211192. Its totient is φ = 49356174528.

The previous prime is 61796030389. The next prime is 61796030423. The reversal of 61796030405 is 50403069716.

It can be written as a sum of positive squares in 4 ways, for example, as 4250257636 + 57545772769 = 65194^2 + 239887^2 .

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 61796030405 - 2⁴ = 61796030389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10077854 + ... + 10083983.

It is an arithmetic number, because the mean of its divisors is an integer number (9284526399).

Almost surely, 2^61796030405 is an apocalyptic number.

It is an amenable number.

61796030405 is a deficient number, since it is larger than the sum of its proper divisors (12480180787).

61796030405 is a wasteful number, since it uses less digits than its factorization.

61796030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20162455.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 61796030405 in words is "sixty-one billion, seven hundred ninety-six million, thirty thousand, four hundred five".