7426878015216 has 320 divisors, whose sum is σ = 23019768069120. Its totient is φ = 2039264747520.

The previous prime is 7426878015209. The next prime is 7426878015233. The reversal of 7426878015216 is 6125108786247.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18466380 + ... + 18864276.

It is an arithmetic number, because the mean of its divisors is an integer number (71936775216).

Almost surely, 2^{7426878015216} 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 7426878015216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11509884034560).

7426878015216 is an abundant number, since it is smaller than the sum of its proper divisors (15592890053904).

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

7426878015216 is a wasteful number, since it uses less digits than its factorization.

7426878015216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398024 (or 398018 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 7426878015216 in words is "seven trillion, four hundred twenty-six billion, eight hundred seventy-eight million, fifteen thousand, two hundred sixteen".