7426438566340 has 48 divisors (see below), whose sum is σ = 15617775055680. Its totient is φ = 2966338869120.

The previous prime is 7426438566229. The next prime is 7426438566341. The reversal of 7426438566340 is 436658346247.

It is a super-2 number, since 2×7426438566340² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7426438566341) 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 15 ways as a sum of consecutive naturals, for example, 52682071 + ... + 52822849.

It is an arithmetic number, because the mean of its divisors is an integer number (325370313660).

Almost surely, 2^{7426438566340} is an apocalyptic number.

It is an amenable number.

7426438566340 is an abundant number, since it is smaller than the sum of its proper divisors (8191336489340).

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

7426438566340 is a wasteful number, since it uses less digits than its factorization.

7426438566340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144532 (or 144530 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 58.

The spelling of 7426438566340 in words is "seven trillion, four hundred twenty-six billion, four hundred thirty-eight million, five hundred sixty-six thousand, three hundred forty".