51436607752730 has 32 divisors (see below), whose sum is σ = 93951523345680. Its totient is φ = 20273255631360.

The previous prime is 51436607752637. The next prime is 51436607752741. The reversal of 51436607752730 is 3725770663415.

It can be written as a sum of positive squares in 8 ways, for example, as 21077400366169 + 30359207386561 = 4591013^2 + 5509919^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130160579 + ... + 130555158.

Almost surely, 2^{51436607752730} is an apocalyptic number.

51436607752730 is a deficient number, since it is larger than the sum of its proper divisors (42514915592950).

51436607752730 is a wasteful number, since it uses less digits than its factorization.

51436607752730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260716034.

The product of its (nonzero) digits is 22226400, while the sum is 56.

The spelling of 51436607752730 in words is "fifty-one trillion, four hundred thirty-six billion, six hundred seven million, seven hundred fifty-two thousand, seven hundred thirty".