9746539274640 has 80 divisors (see below), whose sum is σ = 34530596293248. Its totient is φ = 2227780405248.

The previous prime is 9746539274629. The next prime is 9746539274671. The reversal of 9746539274640 is 464729356479.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2900754057 + ... + 2900757416.

Almost surely, 2^{9746539274640} is an apocalyptic number.

It is an amenable number.

9746539274640 is an abundant number, since it is smaller than the sum of its proper divisors (24784057018608).

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

9746539274640 is a wasteful number, since it uses less digits than its factorization.

9746539274640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801511496 (or 5801511490 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 66.

The spelling of 9746539274640 in words is "nine trillion, seven hundred forty-six billion, five hundred thirty-nine million, two hundred seventy-four thousand, six hundred forty".