7914978711669 has 32 divisors (see below), whose sum is σ = 11137786490880. Its totient is φ = 4989760123392.

The previous prime is 7914978711643. The next prime is 7914978711713. The reversal of 7914978711669 is 9661178794197.

It is not a de Polignac number, because 7914978711669 - 2²³ = 7914970323061 is a prime.

It is a super-2 number, since 2×7914978711669² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7914978711669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7914978711769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5507464 + ... + 6794270.

It is an arithmetic number, because the mean of its divisors is an integer number (348055827840).

Almost surely, 2^{7914978711669} is an apocalyptic number.

It is an amenable number.

7914978711669 is a deficient number, since it is larger than the sum of its proper divisors (3222807779211).

7914978711669 is a wasteful number, since it uses less digits than its factorization.

7914978711669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287849.

The product of its digits is 288054144, while the sum is 75.

The spelling of 7914978711669 in words is "seven trillion, nine hundred fourteen billion, nine hundred seventy-eight million, seven hundred eleven thousand, six hundred sixty-nine".