5771781875 has 20 divisors (see below), whose sum is σ = 7330703424. Its totient is φ = 4541700000.

The previous prime is 5771781863. The next prime is 5771781881. The reversal of 5771781875 is 5781871775.

It is a happy number.

It is not a de Polignac number, because 5771781875 - 2⁸ = 5771781619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5771781875.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37571 + ... + 113820.

Almost surely, 2^5771781875 is an apocalyptic number.

5771781875 is a deficient number, since it is larger than the sum of its proper divisors (1558921549).

5771781875 is an equidigital number, since it uses as much as digits as its factorization.

5771781875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151472 (or 151457 counting only the distinct ones).

The product of its digits is 3841600, while the sum is 56.

The square root of 5771781875 is about 75972.2441092798. The cubic root of 5771781875 is about 1793.7832734301.

The spelling of 5771781875 in words is "five billion, seven hundred seventy-one million, seven hundred eighty-one thousand, eight hundred seventy-five".