2421305543451 has 8 divisors (see below), whose sum is σ = 3228420754944. Its totient is φ = 1614197013800.

The previous prime is 2421305543383. The next prime is 2421305543479. The reversal of 2421305543451 is 1543455031242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421305543451 - 2²¹ = 2421303446299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421305543551) 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 7 ways as a sum of consecutive naturals, for example, 752931 + ... + 2325836.

It is an arithmetic number, because the mean of its divisors is an integer number (403552594368).

Almost surely, 2^{2421305543451} is an apocalyptic number.

2421305543451 is a deficient number, since it is larger than the sum of its proper divisors (807115211493).

2421305543451 is a wasteful number, since it uses less digits than its factorization.

2421305543451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340921.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 2421305543451 in words is "two trillion, four hundred twenty-one billion, three hundred five million, five hundred forty-three thousand, four hundred fifty-one".