126513016378 has 8 divisors (see below), whose sum is σ = 216879456672. Its totient is φ = 54219864156.

The previous prime is 126513016339. The next prime is 126513016393. The reversal of 126513016378 is 873610315621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4518322000 + ... + 4518322027.

It is an arithmetic number, because the mean of its divisors is an integer number (27109932084).

Almost surely, 2^126513016378 is an apocalyptic number.

126513016378 is a deficient number, since it is larger than the sum of its proper divisors (90366440294).

126513016378 is an equidigital number, since it uses as much as digits as its factorization.

126513016378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9036644036.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 126513016378 in words is "one hundred twenty-six billion, five hundred thirteen million, sixteen thousand, three hundred seventy-eight".