7679546421 has 4 divisors (see below), whose sum is σ = 10239395232. Its totient is φ = 5119697612.

The previous prime is 7679546411. The next prime is 7679546437. The reversal of 7679546421 is 1246459767.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7679546421 - 2⁵ = 7679546389 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7679546411) 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, 1279924401 + ... + 1279924406.

It is an arithmetic number, because the mean of its divisors is an integer number (2559848808).

Almost surely, 2^7679546421 is an apocalyptic number.

It is an amenable number.

7679546421 is a deficient number, since it is larger than the sum of its proper divisors (2559848811).

7679546421 is a wasteful number, since it uses less digits than its factorization.

7679546421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559848810.

The product of its digits is 2540160, while the sum is 51.

The square root of 7679546421 is about 87633.0212933458. The cubic root of 7679546421 is about 1972.9308176578.

The spelling of 7679546421 in words is "seven billion, six hundred seventy-nine million, five hundred forty-six thousand, four hundred twenty-one".