2019345077 has 2 divisors, whose sum is σ = 2019345078. Its totient is φ = 2019345076.

The previous prime is 2019345073. The next prime is 2019345089. The reversal of 2019345077 is 7705439102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1753850641 + 265494436 = 41879^2 + 16294^2 .

It is a cyclic number.

It is not a de Polignac number, because 2019345077 - 2² = 2019345073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2019345077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2019345073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009672538 + 1009672539.

It is an arithmetic number, because the mean of its divisors is an integer number (1009672539).

Almost surely, 2^2019345077 is an apocalyptic number.

It is an amenable number.

2019345077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2019345077 is an equidigital number, since it uses as much as digits as its factorization.

2019345077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 2019345077 is about 44937.1235950856. The cubic root of 2019345077 is about 1263.9702341456.

The spelling of 2019345077 in words is "two billion, nineteen million, three hundred forty-five thousand, seventy-seven".