7944854247834 has 128 divisors (see below), whose sum is σ = 19936029560832. Its totient is φ = 2061054927360.

The previous prime is 7944854247817. The next prime is 7944854247859. The reversal of 7944854247834 is 4387424584497.

It is a Harshad number since it is a multiple of its sum of digits (69).

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, 1245352 + ... + 4176195.

It is an arithmetic number, because the mean of its divisors is an integer number (155750230944).

Almost surely, 2^{7944854247834} is an apocalyptic number.

7944854247834 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7944854247834 is an abundant number, since it is smaller than the sum of its proper divisors (11991175312998).

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

7944854247834 is a wasteful number, since it uses less digits than its factorization.

7944854247834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421660.

The product of its digits is 867041280, while the sum is 69.

The spelling of 7944854247834 in words is "seven trillion, nine hundred forty-four billion, eight hundred fifty-four million, two hundred forty-seven thousand, eight hundred thirty-four".