75776325643 has 2 divisors, whose sum is σ = 75776325644. Its totient is φ = 75776325642.

The previous prime is 75776325617. The next prime is 75776325659. The reversal of 75776325643 is 34652367757.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75776325643 - 2¹³ = 75776317451 is a prime.

It is not a weakly prime, because it can be changed into another prime (75776325743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37888162821 + 37888162822.

It is an arithmetic number, because the mean of its divisors is an integer number (37888162822).

Almost surely, 2^75776325643 is an apocalyptic number.

75776325643 is a deficient number, since it is larger than the sum of its proper divisors (1).

75776325643 is an equidigital number, since it uses as much as digits as its factorization.

75776325643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22226400, while the sum is 55.

The spelling of 75776325643 in words is "seventy-five billion, seven hundred seventy-six million, three hundred twenty-five thousand, six hundred forty-three".