7944379454832 has 160 divisors (see below), whose sum is σ = 21489472585728. Its totient is φ = 2524227053568.

The previous prime is 7944379454831. The next prime is 7944379454833. The reversal of 7944379454832 is 2384549734497.

It is an interprime number because it is at equal distance from previous prime (7944379454831) and next prime (7944379454833).

It is a super-2 number, since 2×7944379454832² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7944379454831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539949108 + ... + 539963820.

Almost surely, 2^{7944379454832} 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 7944379454832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10744736292864).

7944379454832 is an abundant number, since it is smaller than the sum of its proper divisors (13545093130896).

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

7944379454832 is a wasteful number, since it uses less digits than its factorization.

7944379454832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16407 (or 16401 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 69.

The spelling of 7944379454832 in words is "seven trillion, nine hundred forty-four billion, three hundred seventy-nine million, four hundred fifty-four thousand, eight hundred thirty-two".