1117718806356 has 48 divisors (see below), whose sum is σ = 2976108143680. Its totient is φ = 362503395360.

The previous prime is 1117718806339. The next prime is 1117718806357. The reversal of 1117718806356 is 6536088177111.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117718806357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139850710 + ... + 139858701.

Almost surely, 2^{1117718806356} is an apocalyptic number.

It is an amenable number.

1117718806356 is an abundant number, since it is smaller than the sum of its proper divisors (1858389337324).

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

1117718806356 is a wasteful number, since it uses less digits than its factorization.

1117718806356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279709461 (or 279709453 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 54.

The spelling of 1117718806356 in words is "one trillion, one hundred seventeen billion, seven hundred eighteen million, eight hundred six thousand, three hundred fifty-six".