7489455279 has 4 divisors (see below), whose sum is σ = 9985940376. Its totient is φ = 4992970184.

The previous prime is 7489455271. The next prime is 7489455289. The reversal of 7489455279 is 9725549847.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7489455279 - 2³ = 7489455271 is a prime.

It is a super-2 number, since 2×7489455279² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7489455271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248242544 + ... + 1248242549.

It is an arithmetic number, because the mean of its divisors is an integer number (2496485094).

Almost surely, 2^7489455279 is an apocalyptic number.

7489455279 is a deficient number, since it is larger than the sum of its proper divisors (2496485097).

7489455279 is a wasteful number, since it uses less digits than its factorization.

7489455279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496485096.

The product of its digits is 25401600, while the sum is 60.

The square root of 7489455279 is about 86541.6389895639. The cubic root of 7489455279 is about 1956.5160306120.

The spelling of 7489455279 in words is "seven billion, four hundred eighty-nine million, four hundred fifty-five thousand, two hundred seventy-nine".