7934942069 has 4 divisors (see below), whose sum is σ = 7935185760. Its totient is φ = 7934698380.

The previous prime is 7934942053. The next prime is 7934942107. The reversal of 7934942069 is 9602494397.

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: 9602494397 = 27427 ⋅350111.

It is a cyclic number.

It is not a de Polignac number, because 7934942069 - 2⁴ = 7934942053 is a prime.

It is a super-2 number, since 2×7934942069² (a number of 21 digits) contains 22 as substring.

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 7934942069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7934942369) 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, 63779 + ... + 141200.

It is an arithmetic number, because the mean of its divisors is an integer number (1983796440).

Almost surely, 2^7934942069 is an apocalyptic number.

It is an amenable number.

7934942069 is a deficient number, since it is larger than the sum of its proper divisors (243691).

7934942069 is a wasteful number, since it uses less digits than its factorization.

7934942069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243690.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The square root of 7934942069 is about 89078.2917943536. The cubic root of 7934942069 is about 1994.5637426913.

The spelling of 7934942069 in words is "seven billion, nine hundred thirty-four million, nine hundred forty-two thousand, sixty-nine".