124406254464 has 64 divisors (see below), whose sum is σ = 330781361040. Its totient is φ = 41427685376.

The previous prime is 124406254463. The next prime is 124406254471. The reversal of 124406254464 is 464452604421.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×124406254464² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124406254463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229084 + ... + 548900.

Almost surely, 2^124406254464 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 124406254464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165390680520).

124406254464 is an abundant number, since it is smaller than the sum of its proper divisors (206375106576).

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

124406254464 is a wasteful number, since it uses less digits than its factorization.

124406254464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320847 (or 320835 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 42.

Adding to 124406254464 its reverse (464452604421), we get a palindrome (588858858885).

The spelling of 124406254464 in words is "one hundred twenty-four billion, four hundred six million, two hundred fifty-four thousand, four hundred sixty-four".