7946156197 has 6 divisors (see below), whose sum is σ = 9243487878. Its totient is φ = 6810990984.

The previous prime is 7946156177. The next prime is 7946156209. The reversal of 7946156197 is 7916516497.

It can be written as a sum of positive squares in only one way, i.e., 4145556996 + 3800599201 = 64386^2 + 61649^2 .

It is not a de Polignac number, because 7946156197 - 2¹⁹ = 7945631909 is a prime.

It is a super-3 number, since 3×7946156197³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7946156177) 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, 81083178 + ... + 81083275.

It is an arithmetic number, because the mean of its divisors is an integer number (1540581313).

Almost surely, 2^7946156197 is an apocalyptic number.

It is an amenable number.

7946156197 is a deficient number, since it is larger than the sum of its proper divisors (1297331681).

7946156197 is a wasteful number, since it uses less digits than its factorization.

7946156197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162166467 (or 162166460 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The square root of 7946156197 is about 89141.2149176799. The cubic root of 7946156197 is about 1995.5029120959.

The spelling of 7946156197 in words is "seven billion, nine hundred forty-six million, one hundred fifty-six thousand, one hundred ninety-seven".