42952390919 has 2 divisors, whose sum is σ = 42952390920. Its totient is φ = 42952390918.

The previous prime is 42952390913. The next prime is 42952390979. The reversal of 42952390919 is 91909325924.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42952390919 is a prime.

It is a super-2 number, since 2×42952390919² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42952390913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21476195459 + 21476195460.

It is an arithmetic number, because the mean of its divisors is an integer number (21476195460).

Almost surely, 2^42952390919 is an apocalyptic number.

42952390919 is a deficient number, since it is larger than the sum of its proper divisors (1).

42952390919 is an equidigital number, since it uses as much as digits as its factorization.

42952390919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 42952390919 in words is "forty-two billion, nine hundred fifty-two million, three hundred ninety thousand, nine hundred nineteen".