42910326491 has 2 divisors, whose sum is σ = 42910326492. Its totient is φ = 42910326490.

The previous prime is 42910326469. The next prime is 42910326509. The reversal of 42910326491 is 19462301924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42910326491 - 2¹⁸ = 42910064347 is a prime.

It is a super-2 number, since 2×42910326491² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42910326691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21455163245 + 21455163246.

It is an arithmetic number, because the mean of its divisors is an integer number (21455163246).

Almost surely, 2^42910326491 is an apocalyptic number.

42910326491 is a deficient number, since it is larger than the sum of its proper divisors (1).

42910326491 is an equidigital number, since it uses as much as digits as its factorization.

42910326491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 42910326491 in words is "forty-two billion, nine hundred ten million, three hundred twenty-six thousand, four hundred ninety-one".