7879439546 has 16 divisors (see below), whose sum is σ = 12895092000. Its totient is φ = 3581156880.

The previous prime is 7879439507. The next prime is 7879439549. The reversal of 7879439546 is 6459349787.

It is a super-2 number, since 2×7879439546² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7879439549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270080 + ... + 297828.

It is an arithmetic number, because the mean of its divisors is an integer number (805943250).

Almost surely, 2^7879439546 is an apocalyptic number.

7879439546 is a deficient number, since it is larger than the sum of its proper divisors (5015652454).

7879439546 is a wasteful number, since it uses less digits than its factorization.

7879439546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40669.

The product of its digits is 45722880, while the sum is 62.

The square root of 7879439546 is about 88766.2072300039. The cubic root of 7879439546 is about 1989.9024005398.

The spelling of 7879439546 in words is "seven billion, eight hundred seventy-nine million, four hundred thirty-nine thousand, five hundred forty-six".