42370981969 has 2 divisors, whose sum is σ = 42370981970. Its totient is φ = 42370981968.

The previous prime is 42370981937. The next prime is 42370981987. The reversal of 42370981969 is 96918907324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24870867025 + 17500114944 = 157705^2 + 132288^2 .

It is a cyclic number.

It is not a de Polignac number, because 42370981969 - 2⁵ = 42370981937 is a prime.

It is a super-2 number, since 2×42370981969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42370981909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21185490984 + 21185490985.

It is an arithmetic number, because the mean of its divisors is an integer number (21185490985).

Almost surely, 2^42370981969 is an apocalyptic number.

It is an amenable number.

42370981969 is a deficient number, since it is larger than the sum of its proper divisors (1).

42370981969 is an equidigital number, since it uses as much as digits as its factorization.

42370981969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 42370981969 in words is "forty-two billion, three hundred seventy million, nine hundred eighty-one thousand, nine hundred sixty-nine".