51361740633 has 64 divisors (see below), whose sum is σ = 85418393600. Its totient is φ = 26788942080.

The previous prime is 51361740631. The next prime is 51361740653. The reversal of 51361740633 is 33604716315.

It is not a de Polignac number, because 51361740633 - 2¹ = 51361740631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51361740591 and 51361740600.

It is not an unprimeable number, because it can be changed into a prime (51361740631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2823435 + ... + 2841567.

It is an arithmetic number, because the mean of its divisors is an integer number (1334662400).

Almost surely, 2^51361740633 is an apocalyptic number.

It is an amenable number.

51361740633 is a deficient number, since it is larger than the sum of its proper divisors (34056652967).

51361740633 is a wasteful number, since it uses less digits than its factorization.

51361740633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18422.

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 51361740633 in words is "fifty-one billion, three hundred sixty-one million, seven hundred forty thousand, six hundred thirty-three".