1538464838401 has 8 divisors (see below), whose sum is σ = 1591529474880. Its totient is φ = 1485401143632.

The previous prime is 1538464838371. The next prime is 1538464838437. The reversal of 1538464838401 is 1048384648351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1538464838401 - 2⁵ = 1538464838369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1538464238401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5273506 + ... + 5557588.

It is an arithmetic number, because the mean of its divisors is an integer number (198941184360).

Almost surely, 2^{1538464838401} is an apocalyptic number.

It is an amenable number.

1538464838401 is a deficient number, since it is larger than the sum of its proper divisors (53064636479).

1538464838401 is a wasteful number, since it uses less digits than its factorization.

1538464838401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470855.

The product of its (nonzero) digits is 8847360, while the sum is 55.

The spelling of 1538464838401 in words is "one trillion, five hundred thirty-eight billion, four hundred sixty-four million, eight hundred thirty-eight thousand, four hundred one".