79449403402 has 8 divisors (see below), whose sum is σ = 119178241056. Its totient is φ = 39723323052.

The previous prime is 79449403399. The next prime is 79449403403. The reversal of 79449403402 is 20430494497.

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

It is not an unprimeable number, because it can be changed into a prime (79449403403) 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, 615718 + ... + 733489.

It is an arithmetic number, because the mean of its divisors is an integer number (14897280132).

Almost surely, 2^79449403402 is an apocalyptic number.

79449403402 is a deficient number, since it is larger than the sum of its proper divisors (39728837654).

79449403402 is a wasteful number, since it uses less digits than its factorization.

79449403402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378652.

The product of its (nonzero) digits is 870912, while the sum is 46.

Adding to 79449403402 its reverse (20430494497), we get a palindrome (99879897899).

The spelling of 79449403402 in words is "seventy-nine billion, four hundred forty-nine million, four hundred three thousand, four hundred two".