102813780808 has 16 divisors (see below), whose sum is σ = 192899993580. Its totient is φ = 51373782528.

The previous prime is 102813780767. The next prime is 102813780847. The reversal of 102813780808 is 808087318201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96014459044 + 6799321764 = 309862^2 + 82458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4125285 + ... + 4150132.

Almost surely, 2^102813780808 is an apocalyptic number.

It is an amenable number.

102813780808 is a deficient number, since it is larger than the sum of its proper divisors (90086212772).

102813780808 is a wasteful number, since it uses less digits than its factorization.

102813780808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276976 (or 8276972 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 102813780808 in words is "one hundred two billion, eight hundred thirteen million, seven hundred eighty thousand, eight hundred eight".