1089776377 has 2 divisors, whose sum is σ = 1089776378. Its totient is φ = 1089776376.

The previous prime is 1089776353. The next prime is 1089776393. The reversal of 1089776377 is 7736779801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669567376 + 420209001 = 25876^2 + 20499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089776377 is a prime.

It is a super-2 number, since 2×1089776377² = 2375225103734492258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1089774377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544888188 + 544888189.

It is an arithmetic number, because the mean of its divisors is an integer number (544888189).

Almost surely, 2^1089776377 is an apocalyptic number.

It is an amenable number.

1089776377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089776377 is an equidigital number, since it uses as much as digits as its factorization.

1089776377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3111696, while the sum is 55.

The square root of 1089776377 is about 33011.7611920358. The cubic root of 1089776377 is about 1029.0720825758.

The spelling of 1089776377 in words is "one billion, eighty-nine million, seven hundred seventy-six thousand, three hundred seventy-seven".