1421186145687 has 144 divisors (see below), whose sum is σ = 2677404248064. Its totient is φ = 710312803200.

The previous prime is 1421186145683. The next prime is 1421186145703. The reversal of 1421186145687 is 7865416811241.

1421186145687 is a `hidden beast` number, since 1 + 4 + 2 + 1 + 18 + 61 + 4 + 568 + 7 = 666.

It is not a de Polignac number, because 1421186145687 - 2² = 1421186145683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421186145683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 40864768 + ... + 40899530.

It is an arithmetic number, because the mean of its divisors is an integer number (18593085056).

Almost surely, 2^{1421186145687} is an apocalyptic number.

1421186145687 is a deficient number, since it is larger than the sum of its proper divisors (1256218102377).

1421186145687 is a wasteful number, since it uses less digits than its factorization.

1421186145687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35002 (or 34988 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 1421186145687 in words is "one trillion, four hundred twenty-one billion, one hundred eighty-six million, one hundred forty-five thousand, six hundred eighty-seven".