126500884457 has 8 divisors (see below), whose sum is σ = 127722784200. Its totient is φ = 125280100224.

The previous prime is 126500884439. The next prime is 126500884463. The reversal of 126500884457 is 754488005621.

It can be written as a sum of positive squares in 4 ways, for example, as 62185895641 + 64314988816 = 249371^2 + 253604^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 126500884457 - 2¹⁶ = 126500818921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126500884417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50078 + ... + 505479.

It is an arithmetic number, because the mean of its divisors is an integer number (15965348025).

Almost surely, 2^126500884457 is an apocalyptic number.

It is an amenable number.

126500884457 is a deficient number, since it is larger than the sum of its proper divisors (1221899743).

126500884457 is a wasteful number, since it uses less digits than its factorization.

126500884457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557755.

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 126500884457 in words is "one hundred twenty-six billion, five hundred million, eight hundred eighty-four thousand, four hundred fifty-seven".