971809424769 has 8 divisors (see below), whose sum is σ = 1295771898400. Its totient is φ = 647859950496.

The previous prime is 971809424767. The next prime is 971809424843. The reversal of 971809424769 is 967424908179.

It is a happy number.

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

It is not a de Polignac number, because 971809424769 - 2¹ = 971809424767 is a prime.

It is a super-2 number, since 2×971809424769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971809424767) 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, 3074044 + ... + 3375405.

It is an arithmetic number, because the mean of its divisors is an integer number (161971487300).

Almost surely, 2^971809424769 is an apocalyptic number.

It is an amenable number.

971809424769 is a deficient number, since it is larger than the sum of its proper divisors (323962473631).

971809424769 is a wasteful number, since it uses less digits than its factorization.

971809424769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499679.

The product of its (nonzero) digits is 54867456, while the sum is 66.

The spelling of 971809424769 in words is "nine hundred seventy-one billion, eight hundred nine million, four hundred twenty-four thousand, seven hundred sixty-nine".