102002756456 has 8 divisors (see below), whose sum is σ = 191255168370. Its totient is φ = 51001378224.

The previous prime is 102002756417. The next prime is 102002756477. The reversal of 102002756456 is 654657200201.

It can be written as a sum of positive squares in only one way, i.e., 79768964356 + 22233792100 = 282434^2 + 149110^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6375172271 + ... + 6375172286.

Almost surely, 2^102002756456 is an apocalyptic number.

It is an amenable number.

102002756456 is a deficient number, since it is larger than the sum of its proper divisors (89252411914).

102002756456 is a wasteful number, since it uses less digits than its factorization.

102002756456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12750344563 (or 12750344559 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 102002756456 its reverse (654657200201), we get a palindrome (756659956657).

The spelling of 102002756456 in words is "one hundred two billion, two million, seven hundred fifty-six thousand, four hundred fifty-six".