102009999949 has 8 divisors (see below), whose sum is σ = 119843916192. Its totient is φ = 85602797040.

The previous prime is 102009999943. The next prime is 102009999979. The reversal of 102009999949 is 949999900201.

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

It is a cyclic number.

It is not a de Polignac number, because 102009999949 - 2¹³ = 102009991757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102009999943) 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, 356678179 + ... + 356678464.

It is an arithmetic number, because the mean of its divisors is an integer number (14980489524).

Almost surely, 2^102009999949 is an apocalyptic number.

It is an amenable number.

102009999949 is a deficient number, since it is larger than the sum of its proper divisors (17833916243).

102009999949 is a wasteful number, since it uses less digits than its factorization.

102009999949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713356667.

The product of its (nonzero) digits is 4251528, while the sum is 61.

The spelling of 102009999949 in words is "one hundred two billion, nine million, nine hundred ninety-nine thousand, nine hundred forty-nine".