102899686672 has 10 divisors (see below), whose sum is σ = 199368142958. Its totient is φ = 51449843328.

The previous prime is 102899686657. The next prime is 102899686691. The reversal of 102899686672 is 276686998201.

It can be written as a sum of positive squares in only one way, i.e., 82153317376 + 20746369296 = 286624^2 + 144036^2 .

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 as a sum of consecutive naturals, namely, 3215615193 + ... + 3215615224.

Almost surely, 2^102899686672 is an apocalyptic number.

It is an amenable number.

102899686672 is a deficient number, since it is larger than the sum of its proper divisors (96468456286).

102899686672 is an equidigital number, since it uses as much as digits as its factorization.

102899686672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6431230425 (or 6431230419 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 102899686672 in words is "one hundred two billion, eight hundred ninety-nine million, six hundred eighty-six thousand, six hundred seventy-two".