1438625052428 has 24 divisors (see below), whose sum is σ = 2683341176544. Its totient is φ = 672516576000.

The previous prime is 1438625052407. The next prime is 1438625052451. The reversal of 1438625052428 is 8242505268341.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70043543 + ... + 70064078.

It is an arithmetic number, because the mean of its divisors is an integer number (111805882356).

Almost surely, 2^{1438625052428} is an apocalyptic number.

It is an amenable number.

1438625052428 is a deficient number, since it is larger than the sum of its proper divisors (1244716124116).

1438625052428 is a wasteful number, since it uses less digits than its factorization.

1438625052428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140107793 (or 140107791 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 50.

The spelling of 1438625052428 in words is "one trillion, four hundred thirty-eight billion, six hundred twenty-five million, fifty-two thousand, four hundred twenty-eight".