4251425554544 has 160 divisors (see below), whose sum is σ = 10163546824704. Its totient is φ = 1682691563520.

The previous prime is 4251425554489. The next prime is 4251425554603. The reversal of 4251425554544 is 4454555241524.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4251425554492 and 4251425554501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34516172 + ... + 34639124.

Almost surely, 2^{4251425554544} 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 4251425554544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5081773412352).

4251425554544 is an abundant number, since it is smaller than the sum of its proper divisors (5912121270160).

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

4251425554544 is a wasteful number, since it uses less digits than its factorization.

4251425554544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123455 (or 123449 counting only the distinct ones).

The product of its digits is 12800000, while the sum is 50.

The spelling of 4251425554544 in words is "four trillion, two hundred fifty-one billion, four hundred twenty-five million, five hundred fifty-four thousand, five hundred forty-four".