126504052778 has 8 divisors (see below), whose sum is σ = 189899946720. Its totient is φ = 63204070540.

The previous prime is 126504052771. The next prime is 126504052783. The reversal of 126504052778 is 877250405621.

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

It is not an unprimeable number, because it can be changed into a prime (126504052771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23974628 + ... + 23979903.

It is an arithmetic number, because the mean of its divisors is an integer number (23737493340).

Almost surely, 2^126504052778 is an apocalyptic number.

126504052778 is a deficient number, since it is larger than the sum of its proper divisors (63395893942).

126504052778 is a wasteful number, since it uses less digits than its factorization.

126504052778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47955852.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 126504052778 in words is "one hundred twenty-six billion, five hundred four million, fifty-two thousand, seven hundred seventy-eight".