123877249444 has 27 divisors (see below), whose sum is σ = 234761064867. Its totient is φ = 57169891584.

The previous prime is 123877249417. The next prime is 123877249501. The reversal of 123877249444 is 444942778321.

The square root of 123877249444 is 351962.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 6995315044 + 116881934400 = 83638^2 + 341880^2 .

It is a Duffinian number.

It is an unprimeable number.

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 in 8 ways as a sum of consecutive naturals, for example, 9144244 + ... + 9157780.

Almost surely, 2^123877249444 is an apocalyptic number.

123877249444 is the 351962-nd square number.

It is an amenable number.

123877249444 is a deficient number, since it is larger than the sum of its proper divisors (110883815423).

123877249444 is an frugal number, since it uses more digits than its factorization.

123877249444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27104 (or 13552 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 55.

It can be divided in two parts, 123877 and 249444, that added together give a square (373321 = 611²).

The spelling of 123877249444 in words is "one hundred twenty-three billion, eight hundred seventy-seven million, two hundred forty-nine thousand, four hundred forty-four".