196126951543 has 2 divisors, whose sum is σ = 196126951544. Its totient is φ = 196126951542.

The previous prime is 196126951529. The next prime is 196126951597. The reversal of 196126951543 is 345159621691.

It is a weak prime.

It is an emirp because it is prime and its reverse (345159621691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 196126951543 - 2²¹ = 196124854391 is a prime.

It is a super-2 number, since 2×196126951543² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196126951513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98063475771 + 98063475772.

It is an arithmetic number, because the mean of its divisors is an integer number (98063475772).

Almost surely, 2^196126951543 is an apocalyptic number.

196126951543 is a deficient number, since it is larger than the sum of its proper divisors (1).

196126951543 is an equidigital number, since it uses as much as digits as its factorization.

196126951543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 52.

The spelling of 196126951543 in words is "one hundred ninety-six billion, one hundred twenty-six million, nine hundred fifty-one thousand, five hundred forty-three".