124788781879 has 2 divisors, whose sum is σ = 124788781880. Its totient is φ = 124788781878.

The previous prime is 124788781787. The next prime is 124788781889. The reversal of 124788781879 is 978187887421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124788781879 - 2¹¹ = 124788779831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124788781889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62394390939 + 62394390940.

It is an arithmetic number, because the mean of its divisors is an integer number (62394390940).

Almost surely, 2^124788781879 is an apocalyptic number.

124788781879 is a deficient number, since it is larger than the sum of its proper divisors (1).

124788781879 is an equidigital number, since it uses as much as digits as its factorization.

124788781879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101154816, while the sum is 70.

The spelling of 124788781879 in words is "one hundred twenty-four billion, seven hundred eighty-eight million, seven hundred eighty-one thousand, eight hundred seventy-nine".