1117278512245 has 32 divisors (see below), whose sum is σ = 1578424953600. Its totient is φ = 743294361600.

The previous prime is 1117278512201. The next prime is 1117278512257. The reversal of 1117278512245 is 5422158727111.

It is not a de Polignac number, because 1117278512245 - 2¹¹ = 1117278510197 is a prime.

It is a super-2 number, since 2×1117278512245² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117278512195 and 1117278512204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2266956 + ... + 2715445.

It is an arithmetic number, because the mean of its divisors is an integer number (49325779800).

Almost surely, 2^{1117278512245} is an apocalyptic number.

It is an amenable number.

1117278512245 is a deficient number, since it is larger than the sum of its proper divisors (461146441355).

1117278512245 is a wasteful number, since it uses less digits than its factorization.

1117278512245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982605.

The product of its digits is 313600, while the sum is 46.

The spelling of 1117278512245 in words is "one trillion, one hundred seventeen billion, two hundred seventy-eight million, five hundred twelve thousand, two hundred forty-five".