7609399079640 has 192 divisors, whose sum is σ = 23686308787680. Its totient is φ = 1955560550400.

The previous prime is 7609399079629. The next prime is 7609399079641. The reversal of 7609399079640 is 469709939067.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7609399079641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27655222 + ... + 27929018.

Almost surely, 2^{7609399079640} 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 7609399079640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11843154393840).

7609399079640 is an abundant number, since it is smaller than the sum of its proper divisors (16076909708040).

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

7609399079640 is a wasteful number, since it uses less digits than its factorization.

7609399079640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274114 (or 274079 counting only the distinct ones).

The product of its (nonzero) digits is 138883248, while the sum is 69.

The spelling of 7609399079640 in words is "seven trillion, six hundred nine billion, three hundred ninety-nine million, seventy-nine thousand, six hundred forty".