7879442493 has 8 divisors (see below), whose sum is σ = 11314071328. Its totient is φ = 4848887664.

The previous prime is 7879442479. The next prime is 7879442497. The reversal of 7879442493 is 3942449787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7879442493 - 2⁹ = 7879441981 is a prime.

It is a super-2 number, since 2×7879442493² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879442497) 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 7 ways as a sum of consecutive naturals, for example, 101018455 + ... + 101018532.

It is an arithmetic number, because the mean of its divisors is an integer number (1414258916).

Almost surely, 2^7879442493 is an apocalyptic number.

It is an amenable number.

7879442493 is a deficient number, since it is larger than the sum of its proper divisors (3434628835).

7879442493 is a wasteful number, since it uses less digits than its factorization.

7879442493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202037003.

The product of its digits is 12192768, while the sum is 57.

The square root of 7879442493 is about 88766.2238297879. The cubic root of 7879442493 is about 1989.9026486218.

The spelling of 7879442493 in words is "seven billion, eight hundred seventy-nine million, four hundred forty-two thousand, four hundred ninety-three".