78222005051281 has 16 divisors (see below), whose sum is σ = 96965850217600. Its totient is φ = 61444686699648.

The previous prime is 78222005051251. The next prime is 78222005051287. The reversal of 78222005051281 is 18215050022287.

It is not a de Polignac number, because 78222005051281 - 2⁵ = 78222005051249 is a prime.

It is a super-2 number, since 2×78222005051281² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78222005051287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3092010636 + ... + 3092035933.

It is an arithmetic number, because the mean of its divisors is an integer number (6060365638600).

Almost surely, 2^{78222005051281} is an apocalyptic number.

It is an amenable number.

78222005051281 is a deficient number, since it is larger than the sum of its proper divisors (18743845166319).

78222005051281 is a wasteful number, since it uses less digits than its factorization.

78222005051281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184046728.

The product of its (nonzero) digits is 179200, while the sum is 43.

The spelling of 78222005051281 in words is "seventy-eight trillion, two hundred twenty-two billion, five million, fifty-one thousand, two hundred eighty-one".