126571120587 has 12 divisors (see below), whose sum is σ = 189596246840. Its totient is φ = 84380746896.

The previous prime is 126571120573. The next prime is 126571120597. The reversal of 126571120587 is 785021175621.

126571120587 is a `hidden beast` number, since 1 + 2 + 6 + 57 + 1 + 12 + 0 + 587 = 666.

It is not a de Polignac number, because 126571120587 - 2⁶ = 126571120523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126571120597) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260434162 + ... + 260434647.

Almost surely, 2^126571120587 is an apocalyptic number.

126571120587 is a deficient number, since it is larger than the sum of its proper divisors (63025126253).

126571120587 is an frugal number, since it uses more digits than its factorization.

126571120587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520868824 (or 520868812 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 126571120587 in words is "one hundred twenty-six billion, five hundred seventy-one million, one hundred twenty thousand, five hundred eighty-seven".