7875240320442 has 32 divisors (see below), whose sum is σ = 17182919033280. Its totient is φ = 2386356389120.

The previous prime is 7875240320419. The next prime is 7875240320491. The reversal of 7875240320442 is 2440230425787.

It is a junction number, because it is equal to n+sod(n) for n = 7875240320391 and 7875240320400.

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, 4863 + ... + 3968690.

It is an arithmetic number, because the mean of its divisors is an integer number (536966219790).

Almost surely, 2^{7875240320442} is an apocalyptic number.

7875240320442 is an abundant number, since it is smaller than the sum of its proper divisors (9307678712838).

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

7875240320442 is a wasteful number, since it uses less digits than its factorization.

7875240320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003598.

The product of its (nonzero) digits is 3010560, while the sum is 48.

The spelling of 7875240320442 in words is "seven trillion, eight hundred seventy-five billion, two hundred forty million, three hundred twenty thousand, four hundred forty-two".