2421287684353 has 4 divisors (see below), whose sum is σ = 2421346618948. Its totient is φ = 2421228749760.

The previous prime is 2421287684351. The next prime is 2421287684381. The reversal of 2421287684353 is 3534867821242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 877871554704 + 1543416129649 = 936948^2 + 1242343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421287684353 - 2¹ = 2421287684351 is a prime.

It is a super-2 number, since 2×2421287684353² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2421287684294 and 2421287684303.

It is not an unprimeable number, because it can be changed into a prime (2421287684351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29405628 + ... + 29487853.

It is an arithmetic number, because the mean of its divisors is an integer number (605336654737).

Almost surely, 2^{2421287684353} is an apocalyptic number.

It is an amenable number.

2421287684353 is a deficient number, since it is larger than the sum of its proper divisors (58934595).

2421287684353 is an equidigital number, since it uses as much as digits as its factorization.

2421287684353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58934594.

The product of its digits is 15482880, while the sum is 55.

The spelling of 2421287684353 in words is "two trillion, four hundred twenty-one billion, two hundred eighty-seven million, six hundred eighty-four thousand, three hundred fifty-three".