250042142069 has 2 divisors, whose sum is σ = 250042142070. Its totient is φ = 250042142068.

The previous prime is 250042142039. The next prime is 250042142087. The reversal of 250042142069 is 960241240052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249510240100 + 531901969 = 499510^2 + 23063^2 .

It is a cyclic number.

It is not a de Polignac number, because 250042142069 - 2¹² = 250042137973 is a prime.

It is a super-2 number, since 2×250042142069² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250042142029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125021071034 + 125021071035.

It is an arithmetic number, because the mean of its divisors is an integer number (125021071035).

Almost surely, 2^250042142069 is an apocalyptic number.

It is an amenable number.

250042142069 is a deficient number, since it is larger than the sum of its proper divisors (1).

250042142069 is an equidigital number, since it uses as much as digits as its factorization.

250042142069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 250042142069 in words is "two hundred fifty billion, forty-two million, one hundred forty-two thousand, sixty-nine".