102855909250 has 16 divisors (see below), whose sum is σ = 192546262584. Its totient is φ = 41142363600.

The previous prime is 102855909229. The next prime is 102855909257. The reversal of 102855909250 is 52909558201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33877715481 + 68978193769 = 184059^2 + 262637^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102855909250.

It is not an unprimeable number, because it can be changed into a prime (102855909257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205711569 + ... + 205712068.

Almost surely, 2^102855909250 is an apocalyptic number.

102855909250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102855909250 is a deficient number, since it is larger than the sum of its proper divisors (89690353334).

102855909250 is an equidigital number, since it uses as much as digits as its factorization.

102855909250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411423654 (or 411423644 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 102855909250 in words is "one hundred two billion, eight hundred fifty-five million, nine hundred nine thousand, two hundred fifty".