2042554979 has 2 divisors, whose sum is σ = 2042554980. Its totient is φ = 2042554978.

The previous prime is 2042554973. The next prime is 2042555003. The reversal of 2042554979 is 9794552402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2042554979 - 2⁴ = 2042554963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2042554973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021277489 + 1021277490.

It is an arithmetic number, because the mean of its divisors is an integer number (1021277490).

Almost surely, 2^2042554979 is an apocalyptic number.

2042554979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042554979 is an equidigital number, since it uses as much as digits as its factorization.

2042554979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 2042554979 is about 45194.6344049822. The cubic root of 2042554979 is about 1268.7943958063.

The spelling of 2042554979 in words is "two billion, forty-two million, five hundred fifty-four thousand, nine hundred seventy-nine".