8317820113778 has 32 divisors (see below), whose sum is σ = 14454459524736. Its totient is φ = 3516085352448.

The previous prime is 8317820113667. The next prime is 8317820113781. The reversal of 8317820113778 is 8773110287138.

It is a super-3 number, since 3×8317820113778³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5126351 + ... + 6550962.

It is an arithmetic number, because the mean of its divisors is an integer number (451701860148).

Almost surely, 2^{8317820113778} is an apocalyptic number.

8317820113778 is a deficient number, since it is larger than the sum of its proper divisors (6136639410958).

8317820113778 is a wasteful number, since it uses less digits than its factorization.

8317820113778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11678018.

The product of its (nonzero) digits is 3161088, while the sum is 56.

The spelling of 8317820113778 in words is "eight trillion, three hundred seventeen billion, eight hundred twenty million, one hundred thirteen thousand, seven hundred seventy-eight".