7040340668038 has 4 divisors (see below), whose sum is σ = 10560511002060. Its totient is φ = 3520170334018.

The previous prime is 7040340668003. The next prime is 7040340668041. The reversal of 7040340668038 is 8308660430407.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×7040340668038² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7040340667982 and 7040340668000.

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 as a sum of consecutive naturals, namely, 1760085167008 + ... + 1760085167011.

It is an arithmetic number, because the mean of its divisors is an integer number (2640127750515).

Almost surely, 2^{7040340668038} is an apocalyptic number.

7040340668038 is a deficient number, since it is larger than the sum of its proper divisors (3520170334022).

7040340668038 is a wasteful number, since it uses less digits than its factorization.

7040340668038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520170334021.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 7040340668038 in words is "seven trillion, forty billion, three hundred forty million, six hundred sixty-eight thousand, thirty-eight".