1438454235504 has 80 divisors (see below), whose sum is σ = 4365658329984. Its totient is φ = 402364819200.

The previous prime is 1438454235469. The next prime is 1438454235553. The reversal of 1438454235504 is 4055324548341.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104775642 + ... + 104789369.

Almost surely, 2^{1438454235504} is an apocalyptic number.

It is an amenable number.

1438454235504 is an abundant number, since it is smaller than the sum of its proper divisors (2927204094480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1438454235504 is a wasteful number, since it uses less digits than its factorization.

1438454235504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209565046 (or 209565040 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 48.

The spelling of 1438454235504 in words is "one trillion, four hundred thirty-eight billion, four hundred fifty-four million, two hundred thirty-five thousand, five hundred four".