125404404444 has 72 divisors (see below), whose sum is σ = 358620033408. Its totient is φ = 38001331440.

The previous prime is 125404404427. The next prime is 125404404491. The reversal of 125404404444 is 444404404521.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 125404404399 and 125404404408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5853712 + ... + 5875095.

Almost surely, 2^125404404444 is an apocalyptic number.

It is an amenable number.

125404404444 is an abundant number, since it is smaller than the sum of its proper divisors (233215628964).

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

125404404444 is a wasteful number, since it uses less digits than its factorization.

125404404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728837 (or 11728823 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 36.

Adding to 125404404444 its reverse (444404404521), we get a palindrome (569808808965).

The spelling of 125404404444 in words is "one hundred twenty-five billion, four hundred four million, four hundred four thousand, four hundred forty-four".