8121401424 has 60 divisors (see below), whose sum is σ = 22735544832. Its totient is φ = 2706312000.

The previous prime is 8121401423. The next prime is 8121401429. The reversal of 8121401424 is 4241041218.

It is a super-2 number, since 2×8121401424² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121401423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634609 + ... + 647279.

Almost surely, 2^8121401424 is an apocalyptic number.

It is an amenable number.

8121401424 is an abundant number, since it is smaller than the sum of its proper divisors (14614143408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8121401424 is a wasteful number, since it uses less digits than its factorization.

8121401424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17136 (or 17127 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 8121401424 is about 90118.8183677527. The cubic root of 8121401424 is about 2010.0660377798.

The spelling of 8121401424 in words is "eight billion, one hundred twenty-one million, four hundred one thousand, four hundred twenty-four".