4778402522405 has 8 divisors (see below), whose sum is σ = 5739834369912. Its totient is φ = 3818887789248.

The previous prime is 4778402522353. The next prime is 4778402522449. The reversal of 4778402522405 is 5042252048774.

It can be written as a sum of positive squares in 4 ways, for example, as 1575569717089 + 3202832805316 = 1255217^2 + 1789646^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4778402522405 - 2⁸ = 4778402522149 is a prime.

It is a super-2 number, since 2×4778402522405² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479273102 + ... + 479283071.

It is an arithmetic number, because the mean of its divisors is an integer number (717479296239).

Almost surely, 2^{4778402522405} is an apocalyptic number.

It is an amenable number.

4778402522405 is a deficient number, since it is larger than the sum of its proper divisors (961431847507).

4778402522405 is an equidigital number, since it uses as much as digits as its factorization.

4778402522405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958557175.

The product of its (nonzero) digits is 5017600, while the sum is 50.

The spelling of 4778402522405 in words is "four trillion, seven hundred seventy-eight billion, four hundred two million, five hundred twenty-two thousand, four hundred five".