988795341621 has 24 divisors (see below), whose sum is σ = 1450686488160. Its totient is φ = 648903527136.

The previous prime is 988795341601. The next prime is 988795341643. The reversal of 988795341621 is 126143597889.

988795341621 is a `hidden beast` number, since 9 + 8 + 8 + 79 + 534 + 1 + 6 + 21 = 666.

It is not a de Polignac number, because 988795341621 - 2²¹ = 988793244469 is a prime.

It is a super-2 number, since 2×988795341621² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988795341601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2182411 + ... + 2596248.

It is an arithmetic number, because the mean of its divisors is an integer number (60445270340).

Almost surely, 2^988795341621 is an apocalyptic number.

It is an amenable number.

988795341621 is a deficient number, since it is larger than the sum of its proper divisors (461891146539).

988795341621 is a wasteful number, since it uses less digits than its factorization.

988795341621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779025 (or 4779022 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 988795341621 in words is "nine hundred eighty-eight billion, seven hundred ninety-five million, three hundred forty-one thousand, six hundred twenty-one".