1539440886441 has 16 divisors (see below), whose sum is σ = 2075000127488. Its totient is φ = 1015136614800.

The previous prime is 1539440886427. The next prime is 1539440886457. The reversal of 1539440886441 is 1446880449351.

It is not a de Polignac number, because 1539440886441 - 2⁵ = 1539440886409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1539440886461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5977405 + ... + 6229626.

It is an arithmetic number, because the mean of its divisors is an integer number (129687507968).

Almost surely, 2^{1539440886441} is an apocalyptic number.

It is an amenable number.

1539440886441 is a deficient number, since it is larger than the sum of its proper divisors (535559241047).

1539440886441 is a wasteful number, since it uses less digits than its factorization.

1539440886441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12207492.

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 1539440886441 in words is "one trillion, five hundred thirty-nine billion, four hundred forty million, eight hundred eighty-six thousand, four hundred forty-one".