4057778531 has 2 divisors, whose sum is σ = 4057778532. Its totient is φ = 4057778530.

The previous prime is 4057778521. The next prime is 4057778597. The reversal of 4057778531 is 1358777504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4057778531 is a prime.

It is a super-2 number, since 2×4057778531² = 32931133213289035922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4057778521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2028889265 + 2028889266.

It is an arithmetic number, because the mean of its divisors is an integer number (2028889266).

Almost surely, 2^4057778531 is an apocalyptic number.

4057778531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4057778531 is an equidigital number, since it uses as much as digits as its factorization.

4057778531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 823200, while the sum is 47.

The square root of 4057778531 is about 63700.6949020181. The cubic root of 4057778531 is about 1595.0076854220.

The spelling of 4057778531 in words is "four billion, fifty-seven million, seven hundred seventy-eight thousand, five hundred thirty-one".