197064653503 has 2 divisors, whose sum is σ = 197064653504. Its totient is φ = 197064653502.

The previous prime is 197064653501. The next prime is 197064653519. The reversal of 197064653503 is 305356460791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197064653503 - 2¹ = 197064653501 is a prime.

Together with 197064653501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197064653501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98532326751 + 98532326752.

It is an arithmetic number, because the mean of its divisors is an integer number (98532326752).

Almost surely, 2^197064653503 is an apocalyptic number.

197064653503 is a deficient number, since it is larger than the sum of its proper divisors (1).

197064653503 is an equidigital number, since it uses as much as digits as its factorization.

197064653503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 197064653503 in words is "one hundred ninety-seven billion, sixty-four million, six hundred fifty-three thousand, five hundred three".