67791101591 has 2 divisors, whose sum is σ = 67791101592. Its totient is φ = 67791101590.

The previous prime is 67791101507. The next prime is 67791101611. The reversal of 67791101591 is 19510119776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67791101591 - 2¹⁸ = 67790839447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67791101291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33895550795 + 33895550796.

It is an arithmetic number, because the mean of its divisors is an integer number (33895550796).

Almost surely, 2^67791101591 is an apocalyptic number.

67791101591 is a deficient number, since it is larger than the sum of its proper divisors (1).

67791101591 is an equidigital number, since it uses as much as digits as its factorization.

67791101591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070, while the sum is 47.

The spelling of 67791101591 in words is "sixty-seven billion, seven hundred ninety-one million, one hundred one thousand, five hundred ninety-one".