2978587794 has 48 divisors (see below), whose sum is σ = 7462844928. Its totient is φ = 785560608.

The previous prime is 2978587793. The next prime is 2978587813. The reversal of 2978587794 is 4977858792.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2978587793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385842 + ... + 393485.

It is an arithmetic number, because the mean of its divisors is an integer number (155475936).

Almost surely, 2^2978587794 is an apocalyptic number.

2978587794 is an abundant number, since it is smaller than the sum of its proper divisors (4484257134).

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

2978587794 is a wasteful number, since it uses less digits than its factorization.

2978587794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779359 (or 779352 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 66.

The square root of 2978587794 is about 54576.4399168726. The cubic root of 2978587794 is about 1438.8100692588.

The spelling of 2978587794 in words is "two billion, nine hundred seventy-eight million, five hundred eighty-seven thousand, seven hundred ninety-four".