126321280047075 has 48 divisors (see below), whose sum is σ = 209992617303776. Its totient is φ = 67004043955200.

The previous prime is 126321280047059. The next prime is 126321280047101. The reversal of 126321280047075 is 570740082123621.

It is a happy number.

It is a Cunningham number, because it is equal to 11239274²-1.

It is not a de Polignac number, because 126321280047075 - 2⁴ = 126321280047059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5619639 + ... + 16858911.

Almost surely, 2^{126321280047075} is an apocalyptic number.

126321280047075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126321280047075 is a deficient number, since it is larger than the sum of its proper divisors (83671337256701).

126321280047075 is a wasteful number, since it uses less digits than its factorization.

126321280047075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11240104 (or 11240099 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 126321280047075 in words is "one hundred twenty-six trillion, three hundred twenty-one billion, two hundred eighty million, forty-seven thousand, seventy-five".