126057768481 has 4 divisors (see below), whose sum is σ = 126058628272. Its totient is φ = 126056908692.

The previous prime is 126057768461. The next prime is 126057768497. The reversal of 126057768481 is 184867750621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 126057768481 - 2³⁵ = 91698030113 is a prime.

It is a super-2 number, since 2×126057768481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126057768461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148635 + ... + 523648.

It is an arithmetic number, because the mean of its divisors is an integer number (31514657068).

Almost surely, 2^126057768481 is an apocalyptic number.

It is an amenable number.

126057768481 is a deficient number, since it is larger than the sum of its proper divisors (859791).

126057768481 is an equidigital number, since it uses as much as digits as its factorization.

126057768481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859790.

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 126057768481 in words is "one hundred twenty-six billion, fifty-seven million, seven hundred sixty-eight thousand, four hundred eighty-one".