4978012026 has 32 divisors (see below), whose sum is σ = 10725196608. Its totient is φ = 1531221120.

The previous prime is 4978012019. The next prime is 4978012037. The reversal of 4978012026 is 6202108794.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 15 ways as a sum of consecutive naturals, for example, 308581 + ... + 324311.

It is an arithmetic number, because the mean of its divisors is an integer number (335162394).

Almost surely, 2^4978012026 is an apocalyptic number.

4978012026 is an abundant number, since it is smaller than the sum of its proper divisors (5747184582).

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

4978012026 is a wasteful number, since it uses less digits than its factorization.

4978012026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19806.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 4978012026 is about 70555.0283537609. The cubic root of 4978012026 is about 1707.4656695685.

The spelling of 4978012026 in words is "four billion, nine hundred seventy-eight million, twelve thousand, twenty-six".