7798498839936 has 640 divisors, whose sum is σ = 26974296053760. Its totient is φ = 2190488002560.

The previous prime is 7798498839829. The next prime is 7798498839947. The reversal of 7798498839936 is 6399388948977.

7798498839936 is a `hidden beast` number, since 7 + 7 + 9 + 8 + 498 + 83 + 9 + 9 + 36 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1753651665 + ... + 1753656111.

It is an arithmetic number, because the mean of its divisors is an integer number (42147337584).

Almost surely, 2^{7798498839936} 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 7798498839936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13487148026880).

7798498839936 is an abundant number, since it is smaller than the sum of its proper divisors (19175797213824).

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

7798498839936 is a wasteful number, since it uses less digits than its factorization.

7798498839936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884 (or 4863 counting only the distinct ones).

The product of its digits is 35554111488, while the sum is 90.

The spelling of 7798498839936 in words is "seven trillion, seven hundred ninety-eight billion, four hundred ninety-eight million, eight hundred thirty-nine thousand, nine hundred thirty-six".