5780621378 has 16 divisors (see below), whose sum is σ = 10020983040. Its totient is φ = 2449572576.

The previous prime is 5780621369. The next prime is 5780621381. The reversal of 5780621378 is 8731260875.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2318426 + ... + 2320917.

It is an arithmetic number, because the mean of its divisors is an integer number (626311440).

Almost surely, 2^5780621378 is an apocalyptic number.

5780621378 is a deficient number, since it is larger than the sum of its proper divisors (4240361662).

5780621378 is a wasteful number, since it uses less digits than its factorization.

5780621378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639441.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 5780621378 is about 76030.3977235421. The cubic root of 5780621378 is about 1794.6985346825.

The spelling of 5780621378 in words is "five billion, seven hundred eighty million, six hundred twenty-one thousand, three hundred seventy-eight".