2421287684351 has 2 divisors, whose sum is σ = 2421287684352. Its totient is φ = 2421287684350.

The previous prime is 2421287684329. The next prime is 2421287684381. The reversal of 2421287684351 is 1534867821242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421287684351 - 2¹⁰ = 2421287683327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2421287684293 and 2421287684302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421287684381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210643842175 + 1210643842176.

It is an arithmetic number, because the mean of its divisors is an integer number (1210643842176).

Almost surely, 2^{2421287684351} is an apocalyptic number.

2421287684351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421287684351 is an equidigital number, since it uses as much as digits as its factorization.

2421287684351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 53.

The spelling of 2421287684351 in words is "two trillion, four hundred twenty-one billion, two hundred eighty-seven million, six hundred eighty-four thousand, three hundred fifty-one".