51047450877 has 16 divisors (see below), whose sum is σ = 70126735808. Its totient is φ = 33015185280.

The previous prime is 51047450869. The next prime is 51047450897. The reversal of 51047450877 is 77805474015.

It is not a de Polignac number, because 51047450877 - 2³ = 51047450869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51047450897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1897243 + ... + 1923960.

It is an arithmetic number, because the mean of its divisors is an integer number (4382920988).

Almost surely, 2^51047450877 is an apocalyptic number.

It is an amenable number.

51047450877 is a deficient number, since it is larger than the sum of its proper divisors (19079284931).

51047450877 is a wasteful number, since it uses less digits than its factorization.

51047450877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3821340.

The product of its (nonzero) digits is 1097600, while the sum is 48.

The spelling of 51047450877 in words is "fifty-one billion, forty-seven million, four hundred fifty thousand, eight hundred seventy-seven".