1129777693 has 4 divisors (see below), whose sum is σ = 1232484768. Its totient is φ = 1027070620.

The previous prime is 1129777567. The next prime is 1129777699. The reversal of 1129777693 is 3967779211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1129777693 - 2¹⁷ = 1129646621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1129777693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129777699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51353521 + ... + 51353542.

It is an arithmetic number, because the mean of its divisors is an integer number (308121192).

Almost surely, 2^1129777693 is an apocalyptic number.

It is an amenable number.

1129777693 is a deficient number, since it is larger than the sum of its proper divisors (102707075).

1129777693 is a wasteful number, since it uses less digits than its factorization.

1129777693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102707074.

The product of its digits is 1000188, while the sum is 52.

The square root of 1129777693 is about 33612.1658480973. The cubic root of 1129777693 is about 1041.5121288085.

The spelling of 1129777693 in words is "one billion, one hundred twenty-nine million, seven hundred seventy-seven thousand, six hundred ninety-three".