2078077387 has 2 divisors, whose sum is σ = 2078077388. Its totient is φ = 2078077386.

The previous prime is 2078077381. The next prime is 2078077451. The reversal of 2078077387 is 7837708702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2078077387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2078077387.

It is not a weakly prime, because it can be changed into another prime (2078077381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039038693 + 1039038694.

It is an arithmetic number, because the mean of its divisors is an integer number (1039038694).

Almost surely, 2^2078077387 is an apocalyptic number.

2078077387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078077387 is an equidigital number, since it uses as much as digits as its factorization.

2078077387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 921984, while the sum is 49.

The square root of 2078077387 is about 45585.9340915594. The cubic root of 2078077387 is about 1276.1074344983.

The spelling of 2078077387 in words is "two billion, seventy-eight million, seventy-seven thousand, three hundred eighty-seven".