126489589397 has 16 divisors (see below), whose sum is σ = 129471283200. Its totient is φ = 123549557040.

The previous prime is 126489589393. The next prime is 126489589399. The reversal of 126489589397 is 793985984621.

It is a cyclic number.

It is not a de Polignac number, because 126489589397 - 2² = 126489589393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126489589397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126489589393) 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, 2761004 + ... + 2806442.

It is an arithmetic number, because the mean of its divisors is an integer number (8091955200).

Almost surely, 2^126489589397 is an apocalyptic number.

It is an amenable number.

126489589397 is a deficient number, since it is larger than the sum of its proper divisors (2981693803).

126489589397 is a wasteful number, since it uses less digits than its factorization.

126489589397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45896.

The product of its digits is 235146240, while the sum is 71.

The spelling of 126489589397 in words is "one hundred twenty-six billion, four hundred eighty-nine million, five hundred eighty-nine thousand, three hundred ninety-seven".