4978649026 has 16 divisors (see below), whose sum is σ = 8043634368. Its totient is φ = 2297494800.

The previous prime is 4978649003. The next prime is 4978649029. The reversal of 4978649026 is 6209468794.

It is a happy number.

It is a super-2 number, since 2×4978649026² = 49573892248181497352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4978649029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269011 + ... + 286921.

It is an arithmetic number, because the mean of its divisors is an integer number (502727148).

Almost surely, 2^4978649026 is an apocalyptic number.

4978649026 is a deficient number, since it is larger than the sum of its proper divisors (3064985342).

4978649026 is a wasteful number, since it uses less digits than its factorization.

4978649026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28617.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The square root of 4978649026 is about 70559.5424163167. The cubic root of 4978649026 is about 1707.5384971173.

The spelling of 4978649026 in words is "four billion, nine hundred seventy-eight million, six hundred forty-nine thousand, twenty-six".