91742389043 has 2 divisors, whose sum is σ = 91742389044. Its totient is φ = 91742389042.

The previous prime is 91742389031. The next prime is 91742389049. The reversal of 91742389043 is 34098324719.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91742389043 - 2¹⁸ = 91742126899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91742388982 and 91742389000.

It is not a weakly prime, because it can be changed into another prime (91742389049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45871194521 + 45871194522.

It is an arithmetic number, because the mean of its divisors is an integer number (45871194522).

Almost surely, 2^91742389043 is an apocalyptic number.

91742389043 is a deficient number, since it is larger than the sum of its proper divisors (1).

91742389043 is an equidigital number, since it uses as much as digits as its factorization.

91742389043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 91742389043 in words is "ninety-one billion, seven hundred forty-two million, three hundred eighty-nine thousand, forty-three".