7425790981856 has 576 divisors, whose sum is σ = 17620663173120. Its totient is φ = 3056790528000.

The previous prime is 7425790981811. The next prime is 7425790981901. The reversal of 7425790981856 is 6581890975247.

It is an interprime number because it is at equal distance from previous prime (7425790981811) and next prime (7425790981901).

It is a self number, because there is not a number n which added to its sum of digits gives 7425790981856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38878486721 + ... + 38878486911.

It is an arithmetic number, because the mean of its divisors is an integer number (30591429120).

Almost surely, 2^{7425790981856} 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 7425790981856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8810331586560).

7425790981856 is an abundant number, since it is smaller than the sum of its proper divisors (10194872191264).

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

7425790981856 is a wasteful number, since it uses less digits than its factorization.

7425790981856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 304819200, while the sum is 71.

The spelling of 7425790981856 in words is "seven trillion, four hundred twenty-five billion, seven hundred ninety million, nine hundred eighty-one thousand, eight hundred fifty-six".