1238908214644 has 12 divisors (see below), whose sum is σ = 2204836653600. Its totient is φ = 608954885048.

The previous prime is 1238908214641. The next prime is 1238908214657. The reversal of 1238908214644 is 4464128098321.

It is a junction number, because it is equal to n+sod(n) for n = 1238908214591 and 1238908214600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238908214641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2624805304 + ... + 2624805775.

It is an arithmetic number, because the mean of its divisors is an integer number (183736387800).

Almost surely, 2^{1238908214644} is an apocalyptic number.

It is an amenable number.

1238908214644 is a deficient number, since it is larger than the sum of its proper divisors (965928438956).

1238908214644 is a wasteful number, since it uses less digits than its factorization.

1238908214644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5249611142 (or 5249611140 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 52.

The spelling of 1238908214644 in words is "one trillion, two hundred thirty-eight billion, nine hundred eight million, two hundred fourteen thousand, six hundred forty-four".