75969289391 has 2 divisors, whose sum is σ = 75969289392. Its totient is φ = 75969289390.

The previous prime is 75969289349. The next prime is 75969289399. The reversal of 75969289391 is 19398296957.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75969289391 - 2¹⁴ = 75969273007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75969289399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37984644695 + 37984644696.

It is an arithmetic number, because the mean of its divisors is an integer number (37984644696).

Almost surely, 2^75969289391 is an apocalyptic number.

75969289391 is a deficient number, since it is larger than the sum of its proper divisors (1).

75969289391 is an equidigital number, since it uses as much as digits as its factorization.

75969289391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 68.

The spelling of 75969289391 in words is "seventy-five billion, nine hundred sixty-nine million, two hundred eighty-nine thousand, three hundred ninety-one".