75713721427 has 2 divisors, whose sum is σ = 75713721428. Its totient is φ = 75713721426.

The previous prime is 75713721353. The next prime is 75713721431. The reversal of 75713721427 is 72412731757.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75713721427 - 2⁷ = 75713721299 is a prime.

It is a super-2 number, since 2×75713721427² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75713721467) 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, 37856860713 + 37856860714.

It is an arithmetic number, because the mean of its divisors is an integer number (37856860714).

Almost surely, 2^75713721427 is an apocalyptic number.

75713721427 is a deficient number, since it is larger than the sum of its proper divisors (1).

75713721427 is an equidigital number, since it uses as much as digits as its factorization.

75713721427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576240, while the sum is 46.

The spelling of 75713721427 in words is "seventy-five billion, seven hundred thirteen million, seven hundred twenty-one thousand, four hundred twenty-seven".