51040082787 has 12 divisors (see below), whose sum is σ = 72292067736. Its totient is φ = 32025149440.

The previous prime is 51040082783. The next prime is 51040082801. The reversal of 51040082787 is 78728004015.

It is not a de Polignac number, because 51040082787 - 2² = 51040082783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51040082783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29434014 + ... + 29435747.

It is an arithmetic number, because the mean of its divisors is an integer number (6024338978).

Almost surely, 2^51040082787 is an apocalyptic number.

51040082787 is a deficient number, since it is larger than the sum of its proper divisors (21251984949).

51040082787 is a wasteful number, since it uses less digits than its factorization.

51040082787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58869798 (or 58869781 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 51040082787 in words is "fifty-one billion, forty million, eighty-two thousand, seven hundred eighty-seven".