126428989456 has 80 divisors (see below), whose sum is σ = 306667836288. Its totient is φ = 49053542400.

The previous prime is 126428989429. The next prime is 126428989457. The reversal of 126428989456 is 654989824621.

It is not an unprimeable number, because it can be changed into a prime (126428989457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84006 + ... + 509818.

Almost surely, 2^126428989456 is an apocalyptic number.

126428989456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126428989456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153333918144).

126428989456 is an abundant number, since it is smaller than the sum of its proper divisors (180238846832).

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

126428989456 is a wasteful number, since it uses less digits than its factorization.

126428989456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426080 (or 426074 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 64.

The spelling of 126428989456 in words is "one hundred twenty-six billion, four hundred twenty-eight million, nine hundred eighty-nine thousand, four hundred fifty-six".