124377577481 has 2 divisors, whose sum is σ = 124377577482. Its totient is φ = 124377577480.

The previous prime is 124377577459. The next prime is 124377577517. The reversal of 124377577481 is 184775773421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120767370256 + 3610207225 = 347516^2 + 60085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124377577481 is a prime.

It is a super-2 number, since 2×124377577481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124377576481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62188788740 + 62188788741.

It is an arithmetic number, because the mean of its divisors is an integer number (62188788741).

Almost surely, 2^124377577481 is an apocalyptic number.

It is an amenable number.

124377577481 is a deficient number, since it is larger than the sum of its proper divisors (1).

124377577481 is an equidigital number, since it uses as much as digits as its factorization.

124377577481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9219840, while the sum is 56.

The spelling of 124377577481 in words is "one hundred twenty-four billion, three hundred seventy-seven million, five hundred seventy-seven thousand, four hundred eighty-one".