196468431787 has 4 divisors (see below), whose sum is σ = 196556893456. Its totient is φ = 196379970120.

The previous prime is 196468431739. The next prime is 196468431791. The reversal of 196468431787 is 787134864691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196468431787 - 2¹⁵ = 196468399019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196468431727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44227503 + ... + 44231944.

It is an arithmetic number, because the mean of its divisors is an integer number (49139223364).

Almost surely, 2^196468431787 is an apocalyptic number.

196468431787 is a deficient number, since it is larger than the sum of its proper divisors (88461669).

196468431787 is an equidigital number, since it uses as much as digits as its factorization.

196468431787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88461668.

The product of its digits is 48771072, while the sum is 64.

The spelling of 196468431787 in words is "one hundred ninety-six billion, four hundred sixty-eight million, four hundred thirty-one thousand, seven hundred eighty-seven".