7940544854080 has 56 divisors (see below), whose sum is σ = 19560437023320. Its totient is φ = 3066693181440.

The previous prime is 7940544854063. The next prime is 7940544854089. The reversal of 7940544854080 is 804584450497.

It can be written as a sum of positive squares in 4 ways, for example, as 267024361536 + 7673520492544 = 516744^2 + 2770112^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is not an unprimeable number, because it can be changed into a prime (7940544854089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427821801 + ... + 427840360.

Almost surely, 2^{7940544854080} is an apocalyptic number.

It is an amenable number.

7940544854080 is an abundant number, since it is smaller than the sum of its proper divisors (11619892169240).

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

7940544854080 is a wasteful number, since it uses less digits than its factorization.

7940544854080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855662207 (or 855662197 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 58.

The spelling of 7940544854080 in words is "seven trillion, nine hundred forty billion, five hundred forty-four million, eight hundred fifty-four thousand, eighty".