2780028151 has 2 divisors, whose sum is σ = 2780028152. Its totient is φ = 2780028150.

The previous prime is 2780028109. The next prime is 2780028157. The reversal of 2780028151 is 1518200872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2780028151 - 2⁷ = 2780028023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2780028157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390014075 + 1390014076.

It is an arithmetic number, because the mean of its divisors is an integer number (1390014076).

Almost surely, 2^2780028151 is an apocalyptic number.

2780028151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780028151 is an equidigital number, since it uses as much as digits as its factorization.

2780028151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 2780028151 is about 52725.9722622542. The cubic root of 2780028151 is about 1406.1006140282.

The spelling of 2780028151 in words is "two billion, seven hundred eighty million, twenty-eight thousand, one hundred fifty-one".