79823320851 has 8 divisors (see below), whose sum is σ = 106448129424. Its totient is φ = 53207029760.

The previous prime is 79823320807. The next prime is 79823320853. The reversal of 79823320851 is 15802332897.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 79823320851 - 2¹³ = 79823312659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79823320851.

It is not an unprimeable number, because it can be changed into a prime (79823320853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107470 + ... + 2145011.

It is an arithmetic number, because the mean of its divisors is an integer number (13306016178).

Almost surely, 2^79823320851 is an apocalyptic number.

79823320851 is a deficient number, since it is larger than the sum of its proper divisors (26624808573).

79823320851 is a wasteful number, since it uses less digits than its factorization.

79823320851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258741.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 79823320851 in words is "seventy-nine billion, eight hundred twenty-three million, three hundred twenty thousand, eight hundred fifty-one".