4270447244639 has 2 divisors, whose sum is σ = 4270447244640. Its totient is φ = 4270447244638.

The previous prime is 4270447244603. The next prime is 4270447244729. The reversal of 4270447244639 is 9364427440724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4270447244639 is a prime.

It is a super-2 number, since 2×4270447244639² (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 (4270447244039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135223622319 + 2135223622320.

It is an arithmetic number, because the mean of its divisors is an integer number (2135223622320).

Almost surely, 2^{4270447244639} is an apocalyptic number.

4270447244639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4270447244639 is an equidigital number, since it uses as much as digits as its factorization.

4270447244639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32514048, while the sum is 56.

The spelling of 4270447244639 in words is "four trillion, two hundred seventy billion, four hundred forty-seven million, two hundred forty-four thousand, six hundred thirty-nine".