42958193867 has 2 divisors, whose sum is σ = 42958193868. Its totient is φ = 42958193866.

The previous prime is 42958193753. The next prime is 42958193881. The reversal of 42958193867 is 76839185924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42958193867 is a prime.

It is not a weakly prime, because it can be changed into another prime (42958195867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21479096933 + 21479096934.

It is an arithmetic number, because the mean of its divisors is an integer number (21479096934).

Almost surely, 2^42958193867 is an apocalyptic number.

42958193867 is a deficient number, since it is larger than the sum of its proper divisors (1).

42958193867 is an equidigital number, since it uses as much as digits as its factorization.

42958193867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 62.

The spelling of 42958193867 in words is "forty-two billion, nine hundred fifty-eight million, one hundred ninety-three thousand, eight hundred sixty-seven".