7547450868 has 72 divisors (see below), whose sum is σ = 19289612160. Its totient is φ = 2488032000.

The previous prime is 7547450857. The next prime is 7547450881. The reversal of 7547450868 is 8680547457.

7547450868 is a `hidden beast` number, since 7 + 5 + 4 + 74 + 508 + 68 = 666.

It is a congruent number.

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, 2891548 + ... + 2894156.

It is an arithmetic number, because the mean of its divisors is an integer number (267911280).

Almost surely, 2^7547450868 is an apocalyptic number.

It is an amenable number.

7547450868 is an abundant number, since it is smaller than the sum of its proper divisors (11742161292).

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

7547450868 is a wasteful number, since it uses less digits than its factorization.

7547450868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477 (or 3472 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The square root of 7547450868 is about 86876.0661402207. The cubic root of 7547450868 is about 1961.5532311705.

The spelling of 7547450868 in words is "seven billion, five hundred forty-seven million, four hundred fifty thousand, eight hundred sixty-eight".