196249472491 has 8 divisors (see below), whose sum is σ = 196821080064. Its totient is φ = 195678585960.

The previous prime is 196249472479. The next prime is 196249472501. The reversal of 196249472491 is 194274942691.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 196249472491 - 2²⁷ = 196115254763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196249476491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367296 + ... + 726226.

It is an arithmetic number, because the mean of its divisors is an integer number (24602635008).

Almost surely, 2^196249472491 is an apocalyptic number.

196249472491 is a deficient number, since it is larger than the sum of its proper divisors (571607573).

196249472491 is a wasteful number, since it uses less digits than its factorization.

196249472491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360521.

The product of its digits is 7838208, while the sum is 58.

The spelling of 196249472491 in words is "one hundred ninety-six billion, two hundred forty-nine million, four hundred seventy-two thousand, four hundred ninety-one".