4388978974873 has 2 divisors, whose sum is σ = 4388978974874. Its totient is φ = 4388978974872.

The previous prime is 4388978974871. The next prime is 4388978974901. The reversal of 4388978974873 is 3784798798834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4102783934089 + 286195040784 = 2025533^2 + 534972^2 .

It is a cyclic number.

It is not a de Polignac number, because 4388978974873 - 2¹ = 4388978974871 is a prime.

It is a super-2 number, since 2×4388978974873² (a number of 26 digits) contains 22 as substring.

Together with 4388978974871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4388978974871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2194489487436 + 2194489487437.

It is an arithmetic number, because the mean of its divisors is an integer number (2194489487437).

Almost surely, 2^{4388978974873} is an apocalyptic number.

It is an amenable number.

4388978974873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4388978974873 is an equidigital number, since it uses as much as digits as its factorization.

4388978974873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16387080192, while the sum is 85.

The spelling of 4388978974873 in words is "four trillion, three hundred eighty-eight billion, nine hundred seventy-eight million, nine hundred seventy-four thousand, eight hundred seventy-three".