142250078779 has 2 divisors, whose sum is σ = 142250078780. Its totient is φ = 142250078778.

The previous prime is 142250078767. The next prime is 142250078819. The reversal of 142250078779 is 977870052241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142250078779 - 2³³ = 133660144187 is a prime.

It is a super-2 number, since 2×142250078779² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142250070779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71125039389 + 71125039390.

It is an arithmetic number, because the mean of its divisors is an integer number (71125039390).

Almost surely, 2^142250078779 is an apocalyptic number.

142250078779 is a deficient number, since it is larger than the sum of its proper divisors (1).

142250078779 is an equidigital number, since it uses as much as digits as its factorization.

142250078779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 142250078779 in words is "one hundred forty-two billion, two hundred fifty million, seventy-eight thousand, seven hundred seventy-nine".