3020897778 has 16 divisors (see below), whose sum is σ = 6045384576. Its totient is φ = 1006367760.

The previous prime is 3020897777. The next prime is 3020897851. The reversal of 3020897778 is 8777980203.

It is a self number, because there is not a number n which added to its sum of digits gives 3020897778.

It is not an unprimeable number, because it can be changed into a prime (3020897771) 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, 138538 + ... + 158853.

It is an arithmetic number, because the mean of its divisors is an integer number (377836536).

Almost surely, 2^3020897778 is an apocalyptic number.

3020897778 is an abundant number, since it is smaller than the sum of its proper divisors (3024486798).

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

3020897778 is a wasteful number, since it uses less digits than its factorization.

3020897778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299089.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 3020897778 is about 54962.6944208524. The cubic root of 3020897778 is about 1445.5906921992.

The spelling of 3020897778 in words is "three billion, twenty million, eight hundred ninety-seven thousand, seven hundred seventy-eight".