79956365998 has 8 divisors (see below), whose sum is σ = 120627812808. Its totient is φ = 39747095064.

The previous prime is 79956365981. The next prime is 79956366031. The reversal of 79956365998 is 89956365997.

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

It is a super-2 number, since 2×79956365998² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 115543536 + ... + 115544227.

It is an arithmetic number, because the mean of its divisors is an integer number (15078476601).

Almost surely, 2^79956365998 is an apocalyptic number.

79956365998 is a deficient number, since it is larger than the sum of its proper divisors (40671446810).

79956365998 is a wasteful number, since it uses less digits than its factorization.

79956365998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231087938.

The product of its digits is 992023200, while the sum is 76.

Subtracting 79956365998 from its reverse (89956365997), we obtain a palindrome (9999999999).

The spelling of 79956365998 in words is "seventy-nine billion, nine hundred fifty-six million, three hundred sixty-five thousand, nine hundred ninety-eight".