42950565923 has 2 divisors, whose sum is σ = 42950565924. Its totient is φ = 42950565922.

The previous prime is 42950565893. The next prime is 42950565929. The reversal of 42950565923 is 32956505924.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42950565923 - 2²⁴ = 42933788707 is a prime.

It is a super-2 number, since 2×42950565923² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42950565929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21475282961 + 21475282962.

It is an arithmetic number, because the mean of its divisors is an integer number (21475282962).

Almost surely, 2^42950565923 is an apocalyptic number.

42950565923 is a deficient number, since it is larger than the sum of its proper divisors (1).

42950565923 is an equidigital number, since it uses as much as digits as its factorization.

42950565923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 42950565923 in words is "forty-two billion, nine hundred fifty million, five hundred sixty-five thousand, nine hundred twenty-three".