507750043397 has 2 divisors, whose sum is σ = 507750043398. Its totient is φ = 507750043396.

The previous prime is 507750043337. The next prime is 507750043469. The reversal of 507750043397 is 793340057705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 507629175361 + 120868036 = 712481^2 + 10994^2 .

It is a cyclic number.

It is not a de Polignac number, because 507750043397 - 2²⁰ = 507748994821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (507750043327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253875021698 + 253875021699.

It is an arithmetic number, because the mean of its divisors is an integer number (253875021699).

Almost surely, 2^507750043397 is an apocalyptic number.

It is an amenable number.

507750043397 is a deficient number, since it is larger than the sum of its proper divisors (1).

507750043397 is an equidigital number, since it uses as much as digits as its factorization.

507750043397 is an evil number, because the sum of its binary digits is even.

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

The spelling of 507750043397 in words is "five hundred seven billion, seven hundred fifty million, forty-three thousand, three hundred ninety-seven".