61085601886 has 8 divisors (see below), whose sum is σ = 91630350504. Its totient is φ = 30542151720.

The previous prime is 61085601877. The next prime is 61085601911. The reversal of 61085601886 is 68810658016.

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

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 3 ways as a sum of consecutive naturals, for example, 196960 + ... + 401203.

It is an arithmetic number, because the mean of its divisors is an integer number (11453793813).

Almost surely, 2^61085601886 is an apocalyptic number.

61085601886 is a deficient number, since it is larger than the sum of its proper divisors (30544748618).

61085601886 is a wasteful number, since it uses less digits than its factorization.

61085601886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649226.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 61085601886 in words is "sixty-one billion, eighty-five million, six hundred one thousand, eight hundred eighty-six".