75949491671 has 2 divisors, whose sum is σ = 75949491672. Its totient is φ = 75949491670.

The previous prime is 75949491659. The next prime is 75949491689. The reversal of 75949491671 is 17619494957.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75949491671 - 2¹⁸ = 75949229527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75949491641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37974745835 + 37974745836.

It is an arithmetic number, because the mean of its divisors is an integer number (37974745836).

Almost surely, 2^75949491671 is an apocalyptic number.

75949491671 is a deficient number, since it is larger than the sum of its proper divisors (1).

75949491671 is an equidigital number, since it uses as much as digits as its factorization.

75949491671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 62.

The spelling of 75949491671 in words is "seventy-five billion, nine hundred forty-nine million, four hundred ninety-one thousand, six hundred seventy-one".