61200040085 has 8 divisors (see below), whose sum is σ = 74684795040. Its totient is φ = 48130200784.

The previous prime is 61200040073. The next prime is 61200040159. The reversal of 61200040085 is 58004000216.

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 61200040085 - 2⁶ = 61200040021 is a prime.

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, 103728587 + ... + 103729176.

It is an arithmetic number, because the mean of its divisors is an integer number (9335599380).

Almost surely, 2^61200040085 is an apocalyptic number.

It is an amenable number.

61200040085 is a deficient number, since it is larger than the sum of its proper divisors (13484754955).

61200040085 is a wasteful number, since it uses less digits than its factorization.

61200040085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207457827.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 61200040085 in words is "sixty-one billion, two hundred million, forty thousand, eighty-five".