1135777780 has 12 divisors (see below), whose sum is σ = 2385133380. Its totient is φ = 454311104.

The previous prime is 1135777771. The next prime is 1135777829. The reversal of 1135777780 is 877775311.

It can be written as a sum of positive squares in 2 ways, for example, as 611276176 + 524501604 = 24724^2 + 22902^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1135777780.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28394425 + ... + 28394464.

It is an arithmetic number, because the mean of its divisors is an integer number (198761115).

Almost surely, 2^1135777780 is an apocalyptic number.

1135777780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135777780 is an abundant number, since it is smaller than the sum of its proper divisors (1249355600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1135777780 is a wasteful number, since it uses less digits than its factorization.

1135777780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56788898 (or 56788896 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 46.

The square root of 1135777780 is about 33701.3023487224. The cubic root of 1135777780 is about 1043.3526481560.

The spelling of 1135777780 in words is "one billion, one hundred thirty-five million, seven hundred seventy-seven thousand, seven hundred eighty".