1117001778805 has 32 divisors (see below), whose sum is σ = 1502103398400. Its totient is φ = 790237509120.

The previous prime is 1117001778803. The next prime is 1117001778889. The reversal of 1117001778805 is 5088771007111.

It is not a de Polignac number, because 1117001778805 - 2¹ = 1117001778803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117001778803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9708777 + ... + 9823153.

It is an arithmetic number, because the mean of its divisors is an integer number (46940731200).

Almost surely, 2^{1117001778805} is an apocalyptic number.

It is an amenable number.

1117001778805 is a deficient number, since it is larger than the sum of its proper divisors (385101619595).

1117001778805 is a wasteful number, since it uses less digits than its factorization.

1117001778805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119229.

The product of its (nonzero) digits is 109760, while the sum is 46.

The spelling of 1117001778805 in words is "one trillion, one hundred seventeen billion, one million, seven hundred seventy-eight thousand, eight hundred five".