79849164404 has 6 divisors (see below), whose sum is σ = 139736037714. Its totient is φ = 39924582200.

The previous prime is 79849164401. The next prime is 79849164413. The reversal of 79849164404 is 40446194897.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54424224100 + 25424940304 = 233290^2 + 159452^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 79849164404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79849164401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9981145547 + ... + 9981145554.

It is an arithmetic number, because the mean of its divisors is an integer number (23289339619).

Almost surely, 2^79849164404 is an apocalyptic number.

It is an amenable number.

79849164404 is a deficient number, since it is larger than the sum of its proper divisors (59886873310).

79849164404 is a wasteful number, since it uses less digits than its factorization.

79849164404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19962291105 (or 19962291103 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 79849164404 in words is "seventy-nine billion, eight hundred forty-nine million, one hundred sixty-four thousand, four hundred four".