45538400393 has 2 divisors, whose sum is σ = 45538400394. Its totient is φ = 45538400392.

The previous prime is 45538400377. The next prime is 45538400407. The reversal of 45538400393 is 39300483554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45442301584 + 96098809 = 213172^2 + 9803^2 .

It is a cyclic number.

It is not a de Polignac number, because 45538400393 - 2⁴ = 45538400377 is a prime.

It is not a weakly prime, because it can be changed into another prime (45538400363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22769200196 + 22769200197.

It is an arithmetic number, because the mean of its divisors is an integer number (22769200197).

Almost surely, 2^45538400393 is an apocalyptic number.

It is an amenable number.

45538400393 is a deficient number, since it is larger than the sum of its proper divisors (1).

45538400393 is an equidigital number, since it uses as much as digits as its factorization.

45538400393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 45538400393 in words is "forty-five billion, five hundred thirty-eight million, four hundred thousand, three hundred ninety-three".