1214464478438 has 24 divisors (see below), whose sum is σ = 1922407040736. Its totient is φ = 575140993680.

The previous prime is 1214464478431. The next prime is 1214464478509. The reversal of 1214464478438 is 8348744644121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214464478431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6631745 + ... + 6812412.

It is an arithmetic number, because the mean of its divisors is an integer number (80100293364).

Almost surely, 2^{1214464478438} is an apocalyptic number.

1214464478438 is a deficient number, since it is larger than the sum of its proper divisors (707942562298).

1214464478438 is a wasteful number, since it uses less digits than its factorization.

1214464478438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444268 (or 13444237 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 56.

The spelling of 1214464478438 in words is "one trillion, two hundred fourteen billion, four hundred sixty-four million, four hundred seventy-eight thousand, four hundred thirty-eight".