1438614187450 has 36 divisors (see below), whose sum is σ = 2941193216430. Its totient is φ = 523132429600.

The previous prime is 1438614187441. The next prime is 1438614187489. The reversal of 1438614187450 is 547814168341.

It can be written as a sum of positive squares in 3 ways, for example, as 1155855061449 + 282759126001 = 1075107^2 + 531751^2 .

It is a super-2 number, since 2×1438614187450² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 118887685 + ... + 118899784.

Almost surely, 2^{1438614187450} is an apocalyptic number.

1438614187450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1438614187450 is an abundant number, since it is smaller than the sum of its proper divisors (1502579028980).

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

1438614187450 is a wasteful number, since it uses less digits than its factorization.

1438614187450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237787503 (or 237787487 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 1438614187450 in words is "one trillion, four hundred thirty-eight billion, six hundred fourteen million, one hundred eighty-seven thousand, four hundred fifty".