7916489293 has 8 divisors (see below), whose sum is σ = 8054986680. Its totient is φ = 7778273280.

The previous prime is 7916489261. The next prime is 7916489311. The reversal of 7916489293 is 3929846197.

It can be written as a sum of positive squares in 4 ways, for example, as 116596804 + 7799892489 = 10798^2 + 88317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7916489293 - 2⁵ = 7916489261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7916589293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13180 + ... + 126517.

It is an arithmetic number, because the mean of its divisors is an integer number (1006873335).

Almost surely, 2^7916489293 is an apocalyptic number.

It is an amenable number.

7916489293 is a deficient number, since it is larger than the sum of its proper divisors (138497387).

7916489293 is a wasteful number, since it uses less digits than its factorization.

7916489293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140687.

The product of its digits is 5878656, while the sum is 58.

The square root of 7916489293 is about 88974.6553407205. The cubic root of 7916489293 is about 1993.0164175877.

The spelling of 7916489293 in words is "seven billion, nine hundred sixteen million, four hundred eighty-nine thousand, two hundred ninety-three".