102449791008 has 192 divisors, whose sum is σ = 309275366400. Its totient is φ = 32960010240.

The previous prime is 102449791007. The next prime is 102449791009. The reversal of 102449791008 is 800197944201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102449791007) and next prime (102449791009).

It is not an unprimeable number, because it can be changed into a prime (102449791007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10414060 + ... + 10423892.

It is an arithmetic number, because the mean of its divisors is an integer number (1610809200).

Almost surely, 2^102449791008 is an apocalyptic number.

102449791008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102449791008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154637683200).

102449791008 is an abundant number, since it is smaller than the sum of its proper divisors (206825575392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102449791008 is a wasteful number, since it uses less digits than its factorization.

102449791008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10272 (or 10258 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 102449791008 in words is "one hundred two billion, four hundred forty-nine million, seven hundred ninety-one thousand, eight".