51456403773 has 6 divisors (see below), whose sum is σ = 74325916574. Its totient is φ = 34304269176.

The previous prime is 51456403771. The next prime is 51456403793. The reversal of 51456403773 is 37730465415.

51456403773 is a `hidden beast` number, since 5 + 14 + 564 + 0 + 3 + 7 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51402865284 + 53538489 = 226722^2 + 7317^2 .

It is not a de Polignac number, because 51456403773 - 2¹ = 51456403771 is a prime.

It is a super-4 number, since 4×51456403773⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51456403771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2858689090 + ... + 2858689107.

Almost surely, 2^51456403773 is an apocalyptic number.

It is an amenable number.

51456403773 is a deficient number, since it is larger than the sum of its proper divisors (22869512801).

51456403773 is a wasteful number, since it uses less digits than its factorization.

51456403773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717378203 (or 5717378200 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 51456403773 in words is "fifty-one billion, four hundred fifty-six million, four hundred three thousand, seven hundred seventy-three".