7106816815623 has 48 divisors (see below), whose sum is σ = 12026448033600. Its totient is φ = 3959213852160.

The previous prime is 7106816815621. The next prime is 7106816815691. The reversal of 7106816815623 is 3265186186017.

It is a happy number.

7106816815623 is a `hidden beast` number, since 7 + 1 + 0 + 6 + 8 + 1 + 6 + 8 + 1 + 5 + 623 = 666.

It is not a de Polignac number, because 7106816815623 - 2¹ = 7106816815621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7106816815623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7106816815621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2728413 + ... + 4653801.

It is an arithmetic number, because the mean of its divisors is an integer number (250551000700).

Almost surely, 2^{7106816815623} is an apocalyptic number.

7106816815623 is a deficient number, since it is larger than the sum of its proper divisors (4919631217977).

7106816815623 is a wasteful number, since it uses less digits than its factorization.

7106816815623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926872 (or 1926869 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 7106816815623 in words is "seven trillion, one hundred six billion, eight hundred sixteen million, eight hundred fifteen thousand, six hundred twenty-three".