97344447481 has 4 divisors (see below), whose sum is σ = 99975378532. Its totient is φ = 94713516432.

The previous prime is 97344447427. The next prime is 97344447533. The reversal of 97344447481 is 18474444379.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58535447481 + 38809000000 = 241941^2 + 197000^2 .

It is a cyclic number.

It is not a de Polignac number, because 97344447481 - 2¹³ = 97344439289 is a prime.

It is a super-2 number, since 2×97344447481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97344447281) 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, 1315465470 + ... + 1315465543.

It is an arithmetic number, because the mean of its divisors is an integer number (24993844633).

Almost surely, 2^97344447481 is an apocalyptic number.

It is an amenable number.

97344447481 is a deficient number, since it is larger than the sum of its proper divisors (2630931051).

97344447481 is a wasteful number, since it uses less digits than its factorization.

97344447481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630931050.

The product of its digits is 10838016, while the sum is 55.

The spelling of 97344447481 in words is "ninety-seven billion, three hundred forty-four million, four hundred forty-seven thousand, four hundred eighty-one".