4778378401 has 16 divisors (see below), whose sum is σ = 5032621440. Its totient is φ = 4530839040.

The previous prime is 4778378393. The next prime is 4778378413. The reversal of 4778378401 is 1048738774.

It is a cyclic number.

It is not a de Polignac number, because 4778378401 - 2³ = 4778378393 is a prime.

It is a super-4 number, since 4×4778378401⁴ (a number of 40 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4778378441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362020 + ... + 374986.

It is an arithmetic number, because the mean of its divisors is an integer number (314538840).

Almost surely, 2^4778378401 is an apocalyptic number.

It is an amenable number.

4778378401 is a deficient number, since it is larger than the sum of its proper divisors (254243039).

4778378401 is a wasteful number, since it uses less digits than its factorization.

4778378401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13224.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The square root of 4778378401 is about 69125.8157347890. The cubic root of 4778378401 is about 1684.3286898396.

The spelling of 4778378401 in words is "four billion, seven hundred seventy-eight million, three hundred seventy-eight thousand, four hundred one".