126742782394 has 8 divisors (see below), whose sum is σ = 190115697888. Its totient is φ = 63370883100.

The previous prime is 126742782253. The next prime is 126742782461. The reversal of 126742782394 is 493287247621.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295579 + ... + 583825.

It is an arithmetic number, because the mean of its divisors is an integer number (23764462236).

Almost surely, 2^126742782394 is an apocalyptic number.

126742782394 is a deficient number, since it is larger than the sum of its proper divisors (63372915494).

126742782394 is a wasteful number, since it uses less digits than its factorization.

126742782394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508100.

The product of its digits is 8128512, while the sum is 55.

The spelling of 126742782394 in words is "one hundred twenty-six billion, seven hundred forty-two million, seven hundred eighty-two thousand, three hundred ninety-four".