7738110198 has 256 divisors, whose sum is σ = 22157721600. Its totient is φ = 1946954880.

The previous prime is 7738110197. The next prime is 7738110227. The reversal of 7738110198 is 8910118377.

It is a happy number.

7738110198 is a `hidden beast` number, since 77 + 381 + 10 + 198 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7738110197) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12034065 + ... + 12034707.

It is an arithmetic number, because the mean of its divisors is an integer number (86553600).

Almost surely, 2^7738110198 is an apocalyptic number.

7738110198 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7738110198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11078860800).

7738110198 is an abundant number, since it is smaller than the sum of its proper divisors (14419611402).

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

7738110198 is a wasteful number, since it uses less digits than its factorization.

7738110198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 45.

The square root of 7738110198 is about 87966.5288504668. The cubic root of 7738110198 is about 1977.9332750908.

The spelling of 7738110198 in words is "seven billion, seven hundred thirty-eight million, one hundred ten thousand, one hundred ninety-eight".