7620479999 has 4 divisors (see below), whose sum is σ = 8313250920. Its totient is φ = 6927709080.

The previous prime is 7620479987. The next prime is 7620480041. The reversal of 7620479999 is 9999740267.

It is a happy number.

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 7620479999 - 2¹² = 7620475903 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 (7620439999) 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, 346385444 + ... + 346385465.

It is an arithmetic number, because the mean of its divisors is an integer number (2078312730).

Almost surely, 2^7620479999 is an apocalyptic number.

7620479999 is a deficient number, since it is larger than the sum of its proper divisors (692770921).

7620479999 is a wasteful number, since it uses less digits than its factorization.

7620479999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692770920.

The product of its (nonzero) digits is 15431472, while the sum is 62.

The square root of 7620479999 is about 87295.3606957437. The cubic root of 7620479999 is about 1967.8595972740.

The spelling of 7620479999 in words is "seven billion, six hundred twenty million, four hundred seventy-nine thousand, nine hundred ninety-nine".