7840134007848 has 128 divisors (see below), whose sum is σ = 22931446032000. Its totient is φ = 2475067415040.

The previous prime is 7840134007831. The next prime is 7840134007859. The reversal of 7840134007848 is 8487004310487.

It is a super-2 number, since 2×7840134007848² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 7840134007794 and 7840134007803.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13073458 + ... + 13659998.

It is an arithmetic number, because the mean of its divisors is an integer number (179151922125).

Almost surely, 2^{7840134007848} 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 7840134007848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11465723016000).

7840134007848 is an abundant number, since it is smaller than the sum of its proper divisors (15091312024152).

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

7840134007848 is a wasteful number, since it uses less digits than its factorization.

7840134007848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589832 (or 589822 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 7840134007848 in words is "seven trillion, eight hundred forty billion, one hundred thirty-four million, seven thousand, eight hundred forty-eight".