8497746540 has 72 divisors (see below), whose sum is σ = 25816937328. Its totient is φ = 2262510720.

The previous prime is 8497746533. The next prime is 8497746557. The reversal of 8497746540 is 456477948.

8497746540 is a `hidden beast` number, since 8 + 4 + 97 + 7 + 4 + 6 + 540 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79030 + ... + 152450.

It is an arithmetic number, because the mean of its divisors is an integer number (358568574).

Almost surely, 2^8497746540 is an apocalyptic number.

It is an amenable number.

8497746540 is an abundant number, since it is smaller than the sum of its proper divisors (17319190788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8497746540 is a wasteful number, since it uses less digits than its factorization.

8497746540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74079 (or 74074 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The square root of 8497746540 is about 92183.2226600915. Note that the first 3 decimals coincide. The cubic root of 8497746540 is about 2040.6471850871.

The spelling of 8497746540 in words is "eight billion, four hundred ninety-seven million, seven hundred forty-six thousand, five hundred forty".