7986427597590 has 128 divisors (see below), whose sum is σ = 21731847782400. Its totient is φ = 1862114158080.

The previous prime is 7986427597579. The next prime is 7986427597591. The reversal of 7986427597590 is 957957246897.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986427597591) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46382176 + ... + 46554044.

It is an arithmetic number, because the mean of its divisors is an integer number (169780060800).

Almost surely, 2^{7986427597590} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7986427597590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10865923891200).

7986427597590 is an abundant number, since it is smaller than the sum of its proper divisors (13745420184810).

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

7986427597590 is a wasteful number, since it uses less digits than its factorization.

7986427597590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178182.

The product of its (nonzero) digits is 2400451200, while the sum is 78.

The spelling of 7986427597590 in words is "seven trillion, nine hundred eighty-six billion, four hundred twenty-seven million, five hundred ninety-seven thousand, five hundred ninety".