4540039979 has 2 divisors, whose sum is σ = 4540039980. Its totient is φ = 4540039978.

The previous prime is 4540039969. The next prime is 4540040039. The reversal of 4540039979 is 9799300454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4540039979 - 2⁴ = 4540039963 is a prime.

It is a super-2 number, since 2×4540039979² = 41223926021836640882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4540039909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2270019989 + 2270019990.

It is an arithmetic number, because the mean of its divisors is an integer number (2270019990).

Almost surely, 2^4540039979 is an apocalyptic number.

4540039979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4540039979 is an equidigital number, since it uses as much as digits as its factorization.

4540039979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The square root of 4540039979 is about 67379.8187812939. The cubic root of 4540039979 is about 1655.8458060191.

The spelling of 4540039979 in words is "four billion, five hundred forty million, thirty-nine thousand, nine hundred seventy-nine".