1128377819 has 2 divisors, whose sum is σ = 1128377820. Its totient is φ = 1128377818.

The previous prime is 1128377807. The next prime is 1128377827. The reversal of 1128377819 is 9187738211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1128377819 - 2⁸ = 1128377563 is a prime.

It is a super-2 number, since 2×1128377819² = 2546473004822393522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1128377519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564188909 + 564188910.

It is an arithmetic number, because the mean of its divisors is an integer number (564188910).

Almost surely, 2^1128377819 is an apocalyptic number.

1128377819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128377819 is an equidigital number, since it uses as much as digits as its factorization.

1128377819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 47.

The square root of 1128377819 is about 33591.3354750894. The cubic root of 1128377819 is about 1041.0817820963.

The spelling of 1128377819 in words is "one billion, one hundred twenty-eight million, three hundred seventy-seven thousand, eight hundred nineteen".