124704183889 has 4 divisors (see below), whose sum is σ = 124711477924. Its totient is φ = 124696889856.

The previous prime is 124704183883. The next prime is 124704183911. The reversal of 124704183889 is 988381407421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988381407421 = 1973 ⋅500953577.

It can be written as a sum of positive squares in 2 ways, for example, as 52468483600 + 72235700289 = 229060^2 + 268767^2 .

It is a cyclic number.

It is not a de Polignac number, because 124704183889 - 2²⁷ = 124569966161 is a prime.

It is a super-2 number, since 2×124704183889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124704183883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3621312 + ... + 3655585.

It is an arithmetic number, because the mean of its divisors is an integer number (31177869481).

Almost surely, 2^124704183889 is an apocalyptic number.

It is an amenable number.

124704183889 is a deficient number, since it is larger than the sum of its proper divisors (7294035).

124704183889 is an equidigital number, since it uses as much as digits as its factorization.

124704183889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7294034.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 124704183889 in words is "one hundred twenty-four billion, seven hundred four million, one hundred eighty-three thousand, eight hundred eighty-nine".