7742198738 has 8 divisors (see below), whose sum is σ = 11614140288. Its totient is φ = 3870818644.

The previous prime is 7742198731. The next prime is 7742198747. The reversal of 7742198738 is 8378912477.

It is a happy number.

7742198738 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (7742198731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104006 + ... + 162177.

It is an arithmetic number, because the mean of its divisors is an integer number (1451767536).

Almost surely, 2^7742198738 is an apocalyptic number.

7742198738 is a deficient number, since it is larger than the sum of its proper divisors (3871941550).

7742198738 is a wasteful number, since it uses less digits than its factorization.

7742198738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280728.

The product of its digits is 4741632, while the sum is 56.

The square root of 7742198738 is about 87989.7649616136. The cubic root of 7742198738 is about 1978.2815700989.

The spelling of 7742198738 in words is "seven billion, seven hundred forty-two million, one hundred ninety-eight thousand, seven hundred thirty-eight".