7845672042540 has 192 divisors, whose sum is σ = 25351050816000. Its totient is φ = 2011986144000.

The previous prime is 7845672042529. The next prime is 7845672042631. The reversal of 7845672042540 is 452402765487.

7845672042540 is a `hidden beast` number, since 7 + 8 + 4 + 56 + 7 + 2 + 0 + 42 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2932651 + ... + 4928669.

It is an arithmetic number, because the mean of its divisors is an integer number (132036723000).

Almost surely, 2^{7845672042540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7845672042540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12675525408000).

7845672042540 is an abundant number, since it is smaller than the sum of its proper divisors (17505378773460).

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

7845672042540 is a wasteful number, since it uses less digits than its factorization.

7845672042540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996317 (or 1996309 counting only the distinct ones).

The product of its (nonzero) digits is 15052800, while the sum is 54.

The spelling of 7845672042540 in words is "seven trillion, eight hundred forty-five billion, six hundred seventy-two million, forty-two thousand, five hundred forty".