126047589487 has 4 divisors (see below), whose sum is σ = 130394058120. Its totient is φ = 121701120856.

The previous prime is 126047589467. The next prime is 126047589527. The reversal of 126047589487 is 784985740621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126047589487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126047589457) by changing a digit.

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, 2173234273 + ... + 2173234330.

It is an arithmetic number, because the mean of its divisors is an integer number (32598514530).

Almost surely, 2^126047589487 is an apocalyptic number.

126047589487 is a deficient number, since it is larger than the sum of its proper divisors (4346468633).

126047589487 is an equidigital number, since it uses as much as digits as its factorization.

126047589487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346468632.

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 126047589487 in words is "one hundred twenty-six billion, forty-seven million, five hundred eighty-nine thousand, four hundred eighty-seven".