7994386761 has 16 divisors (see below), whose sum is σ = 11032632000. Its totient is φ = 5143062848.

The previous prime is 7994386747. The next prime is 7994386789. The reversal of 7994386761 is 1676834997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7994386761 is a prime.

It is a super-2 number, since 2×7994386761² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 7994386695 and 7994386704.

It is not an unprimeable number, because it can be changed into a prime (7994386721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145990 + ... + 193136.

It is an arithmetic number, because the mean of its divisors is an integer number (689539500).

Almost surely, 2^7994386761 is an apocalyptic number.

It is an amenable number.

7994386761 is a deficient number, since it is larger than the sum of its proper divisors (3038245239).

7994386761 is a wasteful number, since it uses less digits than its factorization.

7994386761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49128.

The product of its digits is 13716864, while the sum is 60.

The square root of 7994386761 is about 89411.3346338147. The cubic root of 7994386761 is about 1999.5321206363.

The spelling of 7994386761 in words is "seven billion, nine hundred ninety-four million, three hundred eighty-six thousand, seven hundred sixty-one".