4978274580 has 90 divisors (see below), whose sum is σ = 15625945566. Its totient is φ = 1326782592.

The previous prime is 4978274549. The next prime is 4978274603. The reversal of 4978274580 is 854728794.

It is a happy number.

4978274580 is a `hidden beast` number, since 497 + 8 + 2 + 74 + 5 + 80 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 419594256 + 4558680324 = 20484^2 + 67518^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2838984 + ... + 2840736.

Almost surely, 2^4978274580 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 4978274580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7812972783).

4978274580 is an abundant number, since it is smaller than the sum of its proper divisors (10647670986).

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

4978274580 is an equidigital number, since it uses as much as digits as its factorization.

4978274580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527 (or 1763 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The square root of 4978274580 is about 70556.8889620284. Note that the first 3 decimals coincide. The cubic root of 4978274580 is about 1707.4956878474.

The spelling of 4978274580 in words is "four billion, nine hundred seventy-eight million, two hundred seventy-four thousand, five hundred eighty".