4779481956399 has 40 divisors (see below), whose sum is σ = 7178802301440. Its totient is φ = 3168907776144.

The previous prime is 4779481956377. The next prime is 4779481956421. The reversal of 4779481956399 is 9936591849774.

4779481956399 is a `hidden beast` number, since 4 + 7 + 7 + 9 + 48 + 1 + 9 + 563 + 9 + 9 = 666.

4779481956399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4779481956377) and next prime (4779481956421).

It is not a de Polignac number, because 4779481956399 - 2²⁰ = 4779480907823 is a prime.

It is a super-2 number, since 2×4779481956399² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4779481951399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18276364 + ... + 18536030.

It is an arithmetic number, because the mean of its divisors is an integer number (179470057536).

Almost surely, 2^{4779481956399} is an apocalyptic number.

4779481956399 is a deficient number, since it is larger than the sum of its proper divisors (2399320345041).

4779481956399 is a wasteful number, since it uses less digits than its factorization.

4779481956399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260921 (or 260912 counting only the distinct ones).

The product of its digits is 3703553280, while the sum is 81.

The spelling of 4779481956399 in words is "four trillion, seven hundred seventy-nine billion, four hundred eighty-one million, nine hundred fifty-six thousand, three hundred ninety-nine".