2072577989 has 2 divisors, whose sum is σ = 2072577990. Its totient is φ = 2072577988.

The previous prime is 2072577979. The next prime is 2072578021. The reversal of 2072577989 is 9897752702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1440809764 + 631768225 = 37958^2 + 25135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2072577989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2072577979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036288994 + 1036288995.

It is an arithmetic number, because the mean of its divisors is an integer number (1036288995).

Almost surely, 2^2072577989 is an apocalyptic number.

It is an amenable number.

2072577989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072577989 is an equidigital number, since it uses as much as digits as its factorization.

2072577989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The square root of 2072577989 is about 45525.5751089429. The cubic root of 2072577989 is about 1274.9807484470.

The spelling of 2072577989 in words is "two billion, seventy-two million, five hundred seventy-seven thousand, nine hundred eighty-nine".