1117779072269 has 4 divisors (see below), whose sum is σ = 1119160753020. Its totient is φ = 1116397391520.

The previous prime is 1117779072259. The next prime is 1117779072287. The reversal of 1117779072269 is 9622709777111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 989951371369 + 127827700900 = 994963^2 + 357530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117779072269 is a prime.

It is a super-2 number, since 2×1117779072269² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117779072239) 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, 690839162 + ... + 690840779.

It is an arithmetic number, because the mean of its divisors is an integer number (279790188255).

Almost surely, 2^{1117779072269} is an apocalyptic number.

It is an amenable number.

1117779072269 is a deficient number, since it is larger than the sum of its proper divisors (1381680751).

1117779072269 is an equidigital number, since it uses as much as digits as its factorization.

1117779072269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381680750.

The product of its (nonzero) digits is 4667544, while the sum is 59.

The spelling of 1117779072269 in words is "one trillion, one hundred seventeen billion, seven hundred seventy-nine million, seventy-two thousand, two hundred sixty-nine".