987421074224641 has 16 divisors (see below), whose sum is σ = 1137369277665280. Its totient is φ = 839694911065920.

The previous prime is 987421074224621. The next prime is 987421074224693. The reversal of 987421074224641 is 146422470124789.

It is not a de Polignac number, because 987421074224641 - 2⁵ = 987421074224609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 987421074224641.

It is not an unprimeable number, because it can be changed into a prime (987421074224621) 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 15 ways as a sum of consecutive naturals, for example, 602404495 + ... + 604041403.

It is an arithmetic number, because the mean of its divisors is an integer number (71085579854080).

Almost surely, 2^{987421074224641} is an apocalyptic number.

It is an amenable number.

987421074224641 is a deficient number, since it is larger than the sum of its proper divisors (149948203440639).

987421074224641 is a wasteful number, since it uses less digits than its factorization.

987421074224641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315584.

The product of its (nonzero) digits is 43352064, while the sum is 61.

The spelling of 987421074224641 in words is "nine hundred eighty-seven trillion, four hundred twenty-one billion, seventy-four million, two hundred twenty-four thousand, six hundred forty-one".