7197198741 has 6 divisors (see below), whose sum is σ = 10395953750. Its totient is φ = 4798132488.

The previous prime is 7197198733. The next prime is 7197198769. The reversal of 7197198741 is 1478917917.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6930562500 + 266636241 = 83250^2 + 16329^2 .

It is not a de Polignac number, because 7197198741 - 2³ = 7197198733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7197198791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399844366 + ... + 399844383.

Almost surely, 2^7197198741 is an apocalyptic number.

It is an amenable number.

7197198741 is a deficient number, since it is larger than the sum of its proper divisors (3198755009).

7197198741 is a wasteful number, since it uses less digits than its factorization.

7197198741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799688755 (or 799688752 counting only the distinct ones).

The product of its digits is 889056, while the sum is 54.

The square root of 7197198741 is about 84836.3055595893. The cubic root of 7197198741 is about 1930.7283121135.

The spelling of 7197198741 in words is "seven billion, one hundred ninety-seven million, one hundred ninety-eight thousand, seven hundred forty-one".