126381387570 has 32 divisors (see below), whose sum is σ = 303325456320. Its totient is φ = 33700578240.

The previous prime is 126381387569. The next prime is 126381387577. The reversal of 126381387570 is 75783183621.

It is not an unprimeable number, because it can be changed into a prime (126381387577) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1249141 + ... + 1346519.

It is an arithmetic number, because the mean of its divisors is an integer number (9478920510).

Almost surely, 2^126381387570 is an apocalyptic number.

126381387570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126381387570 is an abundant number, since it is smaller than the sum of its proper divisors (176944068750).

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

126381387570 is a wasteful number, since it uses less digits than its factorization.

126381387570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140650.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 126381387570 in words is "one hundred twenty-six billion, three hundred eighty-one million, three hundred eighty-seven thousand, five hundred seventy".