7738728198 has 32 divisors (see below), whose sum is σ = 15553635552. Its totient is φ = 2566905600.

The previous prime is 7738728197. The next prime is 7738728211. The reversal of 7738728198 is 8918278377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7738728197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1435468 + ... + 1440848.

It is an arithmetic number, because the mean of its divisors is an integer number (486051111).

Almost surely, 2^7738728198 is an apocalyptic number.

7738728198 is an abundant number, since it is smaller than the sum of its proper divisors (7814907354).

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

7738728198 is a wasteful number, since it uses less digits than its factorization.

7738728198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6520.

The product of its digits is 9483264, while the sum is 60.

The square root of 7738728198 is about 87970.0414800402. The cubic root of 7738728198 is about 1977.9859292140.

The spelling of 7738728198 in words is "seven billion, seven hundred thirty-eight million, seven hundred twenty-eight thousand, one hundred ninety-eight".