4057778591 has 4 divisors (see below), whose sum is σ = 4057910712. Its totient is φ = 4057646472.

The previous prime is 4057778531. The next prime is 4057778597. The reversal of 4057778591 is 1958777504.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4057778591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4057778597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6785 + ... + 90341.

It is an arithmetic number, because the mean of its divisors is an integer number (1014477678).

Almost surely, 2^4057778591 is an apocalyptic number.

4057778591 is a deficient number, since it is larger than the sum of its proper divisors (132121).

4057778591 is an equidigital number, since it uses as much as digits as its factorization.

4057778591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132120.

The product of its (nonzero) digits is 2469600, while the sum is 53.

The square root of 4057778591 is about 63700.6953729706. The cubic root of 4057778591 is about 1595.0076932835.

The spelling of 4057778591 in words is "four billion, fifty-seven million, seven hundred seventy-eight thousand, five hundred ninety-one".