51745396605136 has 40 divisors (see below), whose sum is σ = 109017000659840. Its totient is φ = 23650621888896.

The previous prime is 51745396605073. The next prime is 51745396605299. The reversal of 51745396605136 is 63150669354715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207628796 + ... + 1207671643.

It is an arithmetic number, because the mean of its divisors is an integer number (2725425016496).

Almost surely, 2^{51745396605136} is an apocalyptic number.

It is an amenable number.

51745396605136 is an abundant number, since it is smaller than the sum of its proper divisors (57271604054704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51745396605136 is a wasteful number, since it uses less digits than its factorization.

51745396605136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415300563 (or 2415300557 counting only the distinct ones).

The product of its (nonzero) digits is 61236000, while the sum is 61.

The spelling of 51745396605136 in words is "fifty-one trillion, seven hundred forty-five billion, three hundred ninety-six million, six hundred five thousand, one hundred thirty-six".