97143809456 has 20 divisors (see below), whose sum is σ = 188644882800. Its totient is φ = 48461259072.

The previous prime is 97143809449. The next prime is 97143809459. The reversal of 97143809456 is 65490834179.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (97143809459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6908111 + ... + 6922158.

It is an arithmetic number, because the mean of its divisors is an integer number (9432244140).

Almost surely, 2^97143809456 is an apocalyptic number.

It is an amenable number.

97143809456 is a deficient number, since it is larger than the sum of its proper divisors (91501073344).

97143809456 is a wasteful number, since it uses less digits than its factorization.

97143809456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830716 (or 13830710 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 97143809456 in words is "ninety-seven billion, one hundred forty-three million, eight hundred nine thousand, four hundred fifty-six".