51073740043 has 2 divisors, whose sum is σ = 51073740044. Its totient is φ = 51073740042.

The previous prime is 51073740019. The next prime is 51073740073. The reversal of 51073740043 is 34004737015.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51073740043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51073739990 and 51073740008.

It is not a weakly prime, because it can be changed into another prime (51073740013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25536870021 + 25536870022.

It is an arithmetic number, because the mean of its divisors is an integer number (25536870022).

Almost surely, 2^51073740043 is an apocalyptic number.

51073740043 is a deficient number, since it is larger than the sum of its proper divisors (1).

51073740043 is an equidigital number, since it uses as much as digits as its factorization.

51073740043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 51073740043 in words is "fifty-one billion, seventy-three million, seven hundred forty thousand, forty-three".