7791689941 has 4 divisors (see below), whose sum is σ = 8904788512. Its totient is φ = 6678591372.

The previous prime is 7791689923. The next prime is 7791689953. The reversal of 7791689941 is 1499861977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1499861977 = 157 ⋅9553261.

It is a cyclic number.

It is not a de Polignac number, because 7791689941 - 2¹⁷ = 7791558869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7791689941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7791609941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556549275 + ... + 556549288.

It is an arithmetic number, because the mean of its divisors is an integer number (2226197128).

Almost surely, 2^7791689941 is an apocalyptic number.

It is an amenable number.

7791689941 is a deficient number, since it is larger than the sum of its proper divisors (1113098571).

7791689941 is a wasteful number, since it uses less digits than its factorization.

7791689941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113098570.

The product of its digits is 6858432, while the sum is 61.

The square root of 7791689941 is about 88270.5496810799. The cubic root of 7791689941 is about 1982.4879398295.

The spelling of 7791689941 in words is "seven billion, seven hundred ninety-one million, six hundred eighty-nine thousand, nine hundred forty-one".