2955765978 has 72 divisors (see below), whose sum is σ = 7300142304. Its totient is φ = 895668840.

The previous prime is 2955765977. The next prime is 2955765991. The reversal of 2955765978 is 8795675592.

2955765978 is a `hidden beast` number, since 2 + 9 + 5 + 576 + 59 + 7 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (2955765977) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33675 + ... + 83937.

Almost surely, 2^2955765978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2955765978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3650071152).

2955765978 is an abundant number, since it is smaller than the sum of its proper divisors (4344376326).

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

2955765978 is a wasteful number, since it uses less digits than its factorization.

2955765978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50302 (or 50279 counting only the distinct ones).

The product of its digits is 47628000, while the sum is 63.

The square root of 2955765978 is about 54366.9566740681. The cubic root of 2955765978 is about 1435.1259429662.

The spelling of 2955765978 in words is "two billion, nine hundred fifty-five million, seven hundred sixty-five thousand, nine hundred seventy-eight".