79214495881 has 2 divisors, whose sum is σ = 79214495882. Its totient is φ = 79214495880.

The previous prime is 79214495879. The next prime is 79214495887. The reversal of 79214495881 is 18859441297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59154022656 + 20060473225 = 243216^2 + 141635^2 .

It is an emirp because it is prime and its reverse (18859441297) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79214495881 - 2¹ = 79214495879 is a prime.

It is a super-2 number, since 2×79214495881² (a number of 23 digits) contains 22 as substring.

Together with 79214495879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79214495887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39607247940 + 39607247941.

It is an arithmetic number, because the mean of its divisors is an integer number (39607247941).

Almost surely, 2^79214495881 is an apocalyptic number.

It is an amenable number.

79214495881 is a deficient number, since it is larger than the sum of its proper divisors (1).

79214495881 is an equidigital number, since it uses as much as digits as its factorization.

79214495881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 58.

The spelling of 79214495881 in words is "seventy-nine billion, two hundred fourteen million, four hundred ninety-five thousand, eight hundred eighty-one".