75743773997 has 2 divisors, whose sum is σ = 75743773998. Its totient is φ = 75743773996.

The previous prime is 75743773969. The next prime is 75743774021. The reversal of 75743773997 is 79937734757.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59238205321 + 16505568676 = 243389^2 + 128474^2 .

It is a cyclic number.

It is not a de Polignac number, because 75743773997 - 2¹⁶ = 75743708461 is a prime.

It is a super-2 number, since 2×75743773997² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75743773967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37871886998 + 37871886999.

It is an arithmetic number, because the mean of its divisors is an integer number (37871886999).

Almost surely, 2^75743773997 is an apocalyptic number.

It is an amenable number.

75743773997 is a deficient number, since it is larger than the sum of its proper divisors (1).

75743773997 is an equidigital number, since it uses as much as digits as its factorization.

75743773997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 245046060, while the sum is 68.

The spelling of 75743773997 in words is "seventy-five billion, seven hundred forty-three million, seven hundred seventy-three thousand, nine hundred ninety-seven".