102278388802 has 8 divisors (see below), whose sum is σ = 153481808700. Its totient is φ = 51117785904.

The previous prime is 102278388781. The next prime is 102278388853. The reversal of 102278388802 is 208883872201.

It can be written as a sum of positive squares in 2 ways, for example, as 76027584361 + 26250804441 = 275731^2 + 162021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10698277 + ... + 10707832.

Almost surely, 2^102278388802 is an apocalyptic number.

102278388802 is a deficient number, since it is larger than the sum of its proper divisors (51203419898).

102278388802 is a wasteful number, since it uses less digits than its factorization.

102278388802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21408500.

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 102278388802 in words is "one hundred two billion, two hundred seventy-eight million, three hundred eighty-eight thousand, eight hundred two".