75642411839 has 2 divisors, whose sum is σ = 75642411840. Its totient is φ = 75642411838.

The previous prime is 75642411809. The next prime is 75642411853. The reversal of 75642411839 is 93811424657.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75642411839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75642411809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37821205919 + 37821205920.

It is an arithmetic number, because the mean of its divisors is an integer number (37821205920).

Almost surely, 2^75642411839 is an apocalyptic number.

75642411839 is a deficient number, since it is larger than the sum of its proper divisors (1).

75642411839 is an equidigital number, since it uses as much as digits as its factorization.

75642411839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 50.

The spelling of 75642411839 in words is "seventy-five billion, six hundred forty-two million, four hundred eleven thousand, eight hundred thirty-nine".