97491846771 has 24 divisors (see below), whose sum is σ = 156522081456. Its totient is φ = 57971135040.

The previous prime is 97491846769. The next prime is 97491846841. The reversal of 97491846771 is 17764819479.

97491846771 is a `hidden beast` number, since 9 + 7 + 491 + 84 + 67 + 7 + 1 = 666.

It is not a de Polignac number, because 97491846771 - 2¹ = 97491846769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97491846699 and 97491846708.

It is not an unprimeable number, because it can be changed into a prime (97491846731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9285000 + ... + 9295493.

It is an arithmetic number, because the mean of its divisors is an integer number (6521753394).

Almost surely, 2^97491846771 is an apocalyptic number.

97491846771 is a deficient number, since it is larger than the sum of its proper divisors (59030234685).

97491846771 is a wasteful number, since it uses less digits than its factorization.

97491846771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18580563 (or 18580560 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The spelling of 97491846771 in words is "ninety-seven billion, four hundred ninety-one million, eight hundred forty-six thousand, seven hundred seventy-one".