197339970761 has 2 divisors, whose sum is σ = 197339970762. Its totient is φ = 197339970760.

The previous prime is 197339970703. The next prime is 197339970847. The reversal of 197339970761 is 167079933791.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161588724361 + 35751246400 = 401981^2 + 189080^2 .

It is a cyclic number.

It is not a de Polignac number, because 197339970761 - 2²² = 197335776457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197339970694 and 197339970703.

It is not a weakly prime, because it can be changed into another prime (197339975761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98669985380 + 98669985381.

It is an arithmetic number, because the mean of its divisors is an integer number (98669985381).

Almost surely, 2^197339970761 is an apocalyptic number.

It is an amenable number.

197339970761 is a deficient number, since it is larger than the sum of its proper divisors (1).

197339970761 is an equidigital number, since it uses as much as digits as its factorization.

197339970761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13502538, while the sum is 62.

The spelling of 197339970761 in words is "one hundred ninety-seven billion, three hundred thirty-nine million, nine hundred seventy thousand, seven hundred sixty-one".