4221439974487 has 2 divisors, whose sum is σ = 4221439974488. Its totient is φ = 4221439974486.

The previous prime is 4221439974469. The next prime is 4221439974541. The reversal of 4221439974487 is 7844799341224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4221439974487 - 2³¹ = 4219292490839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221439974407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110719987243 + 2110719987244.

It is an arithmetic number, because the mean of its divisors is an integer number (2110719987244).

Almost surely, 2^{4221439974487} is an apocalyptic number.

4221439974487 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221439974487 is an equidigital number, since it uses as much as digits as its factorization.

4221439974487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97542144, while the sum is 64.

The spelling of 4221439974487 in words is "four trillion, two hundred twenty-one billion, four hundred thirty-nine million, nine hundred seventy-four thousand, four hundred eighty-seven".