7998619039 has 6 divisors (see below), whose sum is σ = 8257153056. Its totient is φ = 7740117180.

The previous prime is 7998619009. The next prime is 7998619049. The reversal of 7998619039 is 9309168997.

It is not a de Polignac number, because 7998619039 - 2²⁵ = 7965064607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998619009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 489922 + ... + 505984.

It is an arithmetic number, because the mean of its divisors is an integer number (1376192176).

Almost surely, 2^7998619039 is an apocalyptic number.

7998619039 is a deficient number, since it is larger than the sum of its proper divisors (258534017).

7998619039 is an frugal number, since it uses more digits than its factorization.

7998619039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32157 (or 16094 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 61.

The square root of 7998619039 is about 89434.9989601386. The cubic root of 7998619039 is about 1999.8849132943.

The spelling of 7998619039 in words is "seven billion, nine hundred ninety-eight million, six hundred nineteen thousand, thirty-nine".