123754349777 has 2 divisors, whose sum is σ = 123754349778. Its totient is φ = 123754349776.

The previous prime is 123754349731. The next prime is 123754349819. The reversal of 123754349777 is 777943457321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118360769296 + 5393580481 = 344036^2 + 73441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123754349777 is a prime.

It is not a weakly prime, because it can be changed into another prime (123754349177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61877174888 + 61877174889.

It is an arithmetic number, because the mean of its divisors is an integer number (61877174889).

Almost surely, 2^123754349777 is an apocalyptic number.

It is an amenable number.

123754349777 is a deficient number, since it is larger than the sum of its proper divisors (1).

123754349777 is an equidigital number, since it uses as much as digits as its factorization.

123754349777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31116960, while the sum is 59.

The spelling of 123754349777 in words is "one hundred twenty-three billion, seven hundred fifty-four million, three hundred forty-nine thousand, seven hundred seventy-seven".