7397026738640 has 480 divisors, whose sum is σ = 23387070881664. Its totient is φ = 2143783649280.

The previous prime is 7397026738603. The next prime is 7397026738679. The reversal of 7397026738640 is 468376207937.

It is a super-2 number, since 2×7397026738640² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 60781532 + ... + 60903108.

Almost surely, 2^{7397026738640} is an apocalyptic number.

7397026738640 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 7397026738640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11693535440832).

7397026738640 is an abundant number, since it is smaller than the sum of its proper divisors (15990044143024).

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

7397026738640 is a wasteful number, since it uses less digits than its factorization.

7397026738640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121715 (or 121702 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 62.

The spelling of 7397026738640 in words is "seven trillion, three hundred ninety-seven billion, twenty-six million, seven hundred thirty-eight thousand, six hundred forty".