7770040716638 has 16 divisors (see below), whose sum is σ = 12282701483520. Its totient is φ = 3676280760216.

The previous prime is 7770040716593. The next prime is 7770040716643. The reversal of 7770040716638 is 8366170400777.

It is a super-2 number, since 2×7770040716638² (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 7 ways as a sum of consecutive naturals, for example, 118434620 + ... + 118500207.

It is an arithmetic number, because the mean of its divisors is an integer number (767668842720).

Almost surely, 2^{7770040716638} is an apocalyptic number.

7770040716638 is a deficient number, since it is larger than the sum of its proper divisors (4512660766882).

7770040716638 is a wasteful number, since it uses less digits than its factorization.

7770040716638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236935711.

The product of its (nonzero) digits is 8297856, while the sum is 56.

The spelling of 7770040716638 in words is "seven trillion, seven hundred seventy billion, forty million, seven hundred sixteen thousand, six hundred thirty-eight".