61054803985 has 32 divisors (see below), whose sum is σ = 87435878400. Its totient is φ = 40016991168.

The previous prime is 61054803959. The next prime is 61054804039. The reversal of 61054803985 is 58930845016.

It is not a de Polignac number, because 61054803985 - 2²³ = 61046415377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1118866 + ... + 1172164.

It is an arithmetic number, because the mean of its divisors is an integer number (2732371200).

Almost surely, 2^61054803985 is an apocalyptic number.

It is an amenable number.

61054803985 is a deficient number, since it is larger than the sum of its proper divisors (26381074415).

61054803985 is a wasteful number, since it uses less digits than its factorization.

61054803985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54757.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 61054803985 in words is "sixty-one billion, fifty-four million, eight hundred three thousand, nine hundred eighty-five".