5417978198405 has 6 divisors (see below), whose sum is σ = 6501580083846. Its totient is φ = 4334378394888.

The previous prime is 5417978198393. The next prime is 5417978198417. The reversal of 5417978198405 is 5048918797145.

It is an interprime number because it is at equal distance from previous prime (5417978198393) and next prime (5417978198417).

It can be written as a sum of positive squares in only one way, i.e., 4334382558724 + 1083595639681 = 2081918^2 + 1040959^2 .

It is not a de Polignac number, because 5417978198405 - 2¹⁴ = 5417978182021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4684316 + ... + 5725274.

It is an arithmetic number, because the mean of its divisors is an integer number (1083596680641).

Almost surely, 2^{5417978198405} is an apocalyptic number.

It is an amenable number.

5417978198405 is a deficient number, since it is larger than the sum of its proper divisors (1083601885441).

5417978198405 is an frugal number, since it uses more digits than its factorization.

5417978198405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081923 (or 1040964 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 68.

The spelling of 5417978198405 in words is "five trillion, four hundred seventeen billion, nine hundred seventy-eight million, one hundred ninety-eight thousand, four hundred five".