1322421863878 has 8 divisors (see below), whose sum is σ = 1983639342672. Its totient is φ = 661208749656.

The previous prime is 1322421863857. The next prime is 1322421863921. The reversal of 1322421863878 is 8783681242231.

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

It is a super-2 number, since 2×1322421863878² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182250 + ... + 1636477.

It is an arithmetic number, because the mean of its divisors is an integer number (247954917834).

Almost surely, 2^{1322421863878} is an apocalyptic number.

1322421863878 is a deficient number, since it is larger than the sum of its proper divisors (661217478794).

1322421863878 is a wasteful number, since it uses less digits than its factorization.

1322421863878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182286.

The product of its digits is 6193152, while the sum is 55.

The spelling of 1322421863878 in words is "one trillion, three hundred twenty-two billion, four hundred twenty-one million, eight hundred sixty-three thousand, eight hundred seventy-eight".