2279894063421 has 16 divisors (see below), whose sum is σ = 3274588941120. Its totient is φ = 1402628202240.

The previous prime is 2279894063417. The next prime is 2279894063479. The reversal of 2279894063421 is 1243604989722.

It is a happy number.

It is not a de Polignac number, because 2279894063421 - 2² = 2279894063417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2279894063221) 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 in 15 ways as a sum of consecutive naturals, for example, 7845660 + ... + 8131061.

It is an arithmetic number, because the mean of its divisors is an integer number (204661808820).

Almost surely, 2^{2279894063421} is an apocalyptic number.

It is an amenable number.

2279894063421 is a deficient number, since it is larger than the sum of its proper divisors (994694877699).

2279894063421 is a wasteful number, since it uses less digits than its factorization.

2279894063421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980396.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 2279894063421 in words is "two trillion, two hundred seventy-nine billion, eight hundred ninety-four million, sixty-three thousand, four hundred twenty-one".