124142077777 has 2 divisors, whose sum is σ = 124142077778. Its totient is φ = 124142077776.

The previous prime is 124142077751. The next prime is 124142077817. The reversal of 124142077777 is 777770241421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87521897281 + 36620180496 = 295841^2 + 191364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124142077777 is a prime.

It is a super-2 number, since 2×124142077777² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124142077777.

It is not a weakly prime, because it can be changed into another prime (124142077877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62071038888 + 62071038889.

It is an arithmetic number, because the mean of its divisors is an integer number (62071038889).

Almost surely, 2^124142077777 is an apocalyptic number.

It is an amenable number.

124142077777 is a deficient number, since it is larger than the sum of its proper divisors (1).

124142077777 is an equidigital number, since it uses as much as digits as its factorization.

124142077777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1075648, while the sum is 49.

The spelling of 124142077777 in words is "one hundred twenty-four billion, one hundred forty-two million, seventy-seven thousand, seven hundred seventy-seven".