4778555340 has 96 divisors (see below), whose sum is σ = 14522941440. Its totient is φ = 1166973696.

The previous prime is 4778555339. The next prime is 4778555401. The reversal of 4778555340 is 435558774.

It is a super-2 number, since 2×4778555340² = 45669182274885031200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4778555340.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 74941 + ... + 123179.

It is an arithmetic number, because the mean of its divisors is an integer number (151280640).

Almost surely, 2^4778555340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4778555340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7261470720).

4778555340 is an abundant number, since it is smaller than the sum of its proper divisors (9744386100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4778555340 is a wasteful number, since it uses less digits than its factorization.

4778555340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48391 (or 48389 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 48.

The square root of 4778555340 is about 69127.0955559396. The cubic root of 4778555340 is about 1684.3494793021.

The spelling of 4778555340 in words is "four billion, seven hundred seventy-eight million, five hundred fifty-five thousand, three hundred forty".