4020825377 has 2 divisors, whose sum is σ = 4020825378. Its totient is φ = 4020825376.

The previous prime is 4020825331. The next prime is 4020825383. The reversal of 4020825377 is 7735280204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2596819681 + 1424005696 = 50959^2 + 37736^2 .

It is a cyclic number.

It is not a de Polignac number, because 4020825377 - 2²⁰ = 4019776801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4020825377.

It is not a weakly prime, because it can be changed into another prime (4020825577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010412688 + 2010412689.

It is an arithmetic number, because the mean of its divisors is an integer number (2010412689).

Almost surely, 2^4020825377 is an apocalyptic number.

It is an amenable number.

4020825377 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020825377 is an equidigital number, since it uses as much as digits as its factorization.

4020825377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 4020825377 is about 63409.9785286196. The cubic root of 4020825377 is about 1590.1511369590.

The spelling of 4020825377 in words is "four billion, twenty million, eight hundred twenty-five thousand, three hundred seventy-seven".