7426996640 has 288 divisors, whose sum is σ = 21811446720. Its totient is φ = 2375847936.

The previous prime is 7426996613. The next prime is 7426996649. The reversal of 7426996640 is 466996247.

It is not an unprimeable number, because it can be changed into a prime (7426996649) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10873739 + ... + 10874421.

It is an arithmetic number, because the mean of its divisors is an integer number (75734190).

Almost surely, 2^7426996640 is an apocalyptic number.

7426996640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7426996640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10905723360).

7426996640 is an abundant number, since it is smaller than the sum of its proper divisors (14384450080).

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

7426996640 is a wasteful number, since it uses less digits than its factorization.

7426996640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The square root of 7426996640 is about 86180.0245996716. The cubic root of 7426996640 is about 1951.0620241608.

The spelling of 7426996640 in words is "seven billion, four hundred twenty-six million, nine hundred ninety-six thousand, six hundred forty".