123424988544 has 384 divisors, whose sum is σ = 430333430400. Its totient is φ = 34522675200.

The previous prime is 123424988539. The next prime is 123424988563. The reversal of 123424988544 is 445889424321.

123424988544 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 2 + 4 + 98 + 8 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6415099 + ... + 6434309.

It is an arithmetic number, because the mean of its divisors is an integer number (1120659975).

Almost surely, 2^123424988544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123424988544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215166715200).

123424988544 is an abundant number, since it is smaller than the sum of its proper divisors (306908441856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123424988544 is a wasteful number, since it uses less digits than its factorization.

123424988544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19271 (or 19240 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 54.

The spelling of 123424988544 in words is "one hundred twenty-three billion, four hundred twenty-four million, nine hundred eighty-eight thousand, five hundred forty-four".