51080030985 has 32 divisors (see below), whose sum is σ = 89327066112. Its totient is φ = 24813066240.

The previous prime is 51080030893. The next prime is 51080031029. The reversal of 51080030985 is 58903008015.

It is not a de Polignac number, because 51080030985 - 2¹² = 51080026889 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 3222964 + ... + 3238773.

It is an arithmetic number, because the mean of its divisors is an integer number (2791470816).

Almost surely, 2^51080030985 is an apocalyptic number.

It is an amenable number.

51080030985 is a deficient number, since it is larger than the sum of its proper divisors (38247035127).

51080030985 is a wasteful number, since it uses less digits than its factorization.

51080030985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461793.

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 51080030985 in words is "fifty-one billion, eighty million, thirty thousand, nine hundred eighty-five".