196743447451 has 8 divisors (see below), whose sum is σ = 203839428608. Its totient is φ = 189694305000.

The previous prime is 196743447431. The next prime is 196743447497. The reversal of 196743447451 is 154744347691.

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 196743447451 - 2⁵ = 196743447419 is a prime.

It is a super-2 number, since 2×196743447451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 196743447392 and 196743447401.

It is not an unprimeable number, because it can be changed into a prime (196743447421) 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, 11701125 + ... + 11717926.

It is an arithmetic number, because the mean of its divisors is an integer number (25479928576).

Almost surely, 2^196743447451 is an apocalyptic number.

196743447451 is a deficient number, since it is larger than the sum of its proper divisors (7095981157).

196743447451 is a wasteful number, since it uses less digits than its factorization.

196743447451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23419353.

The product of its digits is 10160640, while the sum is 55.

The spelling of 196743447451 in words is "one hundred ninety-six billion, seven hundred forty-three million, four hundred forty-seven thousand, four hundred fifty-one".