124199834977 has 2 divisors, whose sum is σ = 124199834978. Its totient is φ = 124199834976.

The previous prime is 124199834971. The next prime is 124199834987. The reversal of 124199834977 is 779438991421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62965363041 + 61234471936 = 250929^2 + 247456^2 .

It is a cyclic number.

It is not a de Polignac number, because 124199834977 - 2¹⁹ = 124199310689 is a prime.

It is not a weakly prime, because it can be changed into another prime (124199834971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62099917488 + 62099917489.

It is an arithmetic number, because the mean of its divisors is an integer number (62099917489).

Almost surely, 2^124199834977 is an apocalyptic number.

It is an amenable number.

124199834977 is a deficient number, since it is larger than the sum of its proper divisors (1).

124199834977 is an equidigital number, since it uses as much as digits as its factorization.

124199834977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27433728, while the sum is 64.

The spelling of 124199834977 in words is "one hundred twenty-four billion, one hundred ninety-nine million, eight hundred thirty-four thousand, nine hundred seventy-seven".