51756376730 has 16 divisors (see below), whose sum is σ = 94919242824. Its totient is φ = 20311936320.

The previous prime is 51756376613. The next prime is 51756376757. The reversal of 51756376730 is 3767365715.

It can be written as a sum of positive squares in 4 ways, for example, as 32181848449 + 19574528281 = 179393^2 + 139909^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48826241 + ... + 48827300.

Almost surely, 2^51756376730 is an apocalyptic number.

51756376730 is a deficient number, since it is larger than the sum of its proper divisors (43162866094).

51756376730 is a wasteful number, since it uses less digits than its factorization.

51756376730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97653601.

The product of its (nonzero) digits is 2778300, while the sum is 50.

The spelling of 51756376730 in words is "fifty-one billion, seven hundred fifty-six million, three hundred seventy-six thousand, seven hundred thirty".