2421287684407 has 2 divisors, whose sum is σ = 2421287684408. Its totient is φ = 2421287684406.

The previous prime is 2421287684399. The next prime is 2421287684477. The reversal of 2421287684407 is 7044867821242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2421287684407 - 2³ = 2421287684399 is a prime.

It is a super-2 number, since 2×2421287684407² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421287684477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210643842203 + 1210643842204.

It is an arithmetic number, because the mean of its divisors is an integer number (1210643842204).

Almost surely, 2^{2421287684407} is an apocalyptic number.

2421287684407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421287684407 is an equidigital number, since it uses as much as digits as its factorization.

2421287684407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9633792, while the sum is 55.

The spelling of 2421287684407 in words is "two trillion, four hundred twenty-one billion, two hundred eighty-seven million, six hundred eighty-four thousand, four hundred seven".