79678889362 has 4 divisors (see below), whose sum is σ = 119518334046. Its totient is φ = 39839444680.

The previous prime is 79678889317. The next prime is 79678889369. The reversal of 79678889362 is 26398887697.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 79090875361 + 588014001 = 281231^2 + 24249^2 .

It is not an unprimeable number, because it can be changed into a prime (79678889369) 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 as a sum of consecutive naturals, namely, 19919722339 + ... + 19919722342.

Almost surely, 2^79678889362 is an apocalyptic number.

79678889362 is a deficient number, since it is larger than the sum of its proper divisors (39839444684).

79678889362 is a wasteful number, since it uses less digits than its factorization.

79678889362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39839444683.

The product of its digits is 438939648, while the sum is 73.

The spelling of 79678889362 in words is "seventy-nine billion, six hundred seventy-eight million, eight hundred eighty-nine thousand, three hundred sixty-two".