4042051957 has 2 divisors, whose sum is σ = 4042051958. Its totient is φ = 4042051956.

The previous prime is 4042051933. The next prime is 4042052011. The reversal of 4042051957 is 7591502404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3694937796 + 347114161 = 60786^2 + 18631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042051957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040051957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021025978 + 2021025979.

It is an arithmetic number, because the mean of its divisors is an integer number (2021025979).

Almost surely, 2^4042051957 is an apocalyptic number.

It is an amenable number.

4042051957 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042051957 is an equidigital number, since it uses as much as digits as its factorization.

4042051957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 4042051957 is about 63577.1339162124. The cubic root of 4042051957 is about 1592.9444479585.

The spelling of 4042051957 in words is "four billion, forty-two million, fifty-one thousand, nine hundred fifty-seven".