1125642464487 has 6 divisors (see below), whose sum is σ = 1625928004272. Its totient is φ = 750428309652.

The previous prime is 1125642464477. The next prime is 1125642464543. The reversal of 1125642464487 is 7844642465211.

1125642464487 is a `hidden beast` number, since 1 + 1 + 25 + 64 + 24 + 64 + 487 = 666.

It is not a de Polignac number, because 1125642464487 - 2⁶ = 1125642464423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125642464417) 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 5 ways as a sum of consecutive naturals, for example, 62535692463 + ... + 62535692480.

It is an arithmetic number, because the mean of its divisors is an integer number (270988000712).

Almost surely, 2^{1125642464487} is an apocalyptic number.

1125642464487 is a deficient number, since it is larger than the sum of its proper divisors (500285539785).

1125642464487 is a wasteful number, since it uses less digits than its factorization.

1125642464487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125071384949 (or 125071384946 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The spelling of 1125642464487 in words is "one trillion, one hundred twenty-five billion, six hundred forty-two million, four hundred sixty-four thousand, four hundred eighty-seven".