126387500128 has 12 divisors (see below), whose sum is σ = 248825390940. Its totient is φ = 63193750048.

The previous prime is 126387500081. The next prime is 126387500137. The reversal of 126387500128 is 821005783621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974804658 + ... + 1974804721.

It is an arithmetic number, because the mean of its divisors is an integer number (20735449245).

Almost surely, 2^126387500128 is an apocalyptic number.

It is an amenable number.

126387500128 is a deficient number, since it is larger than the sum of its proper divisors (122437890812).

126387500128 is an equidigital number, since it uses as much as digits as its factorization.

126387500128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949609389 (or 3949609381 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 126387500128 in words is "one hundred twenty-six billion, three hundred eighty-seven million, five hundred thousand, one hundred twenty-eight".