1577442663121 has 16 divisors (see below), whose sum is σ = 1790716446400. Its totient is φ = 1377518228928.

The previous prime is 1577442663109. The next prime is 1577442663149. The reversal of 1577442663121 is 1213662447751.

It is a cyclic number.

It is not a de Polignac number, because 1577442663121 - 2¹³ = 1577442654929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1577442663101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4328691 + ... + 4678936.

It is an arithmetic number, because the mean of its divisors is an integer number (111919777900).

Almost surely, 2^{1577442663121} is an apocalyptic number.

It is an amenable number.

1577442663121 is a deficient number, since it is larger than the sum of its proper divisors (213273783279).

1577442663121 is a wasteful number, since it uses less digits than its factorization.

1577442663121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9008368.

The product of its digits is 1693440, while the sum is 49.

The spelling of 1577442663121 in words is "one trillion, five hundred seventy-seven billion, four hundred forty-two million, six hundred sixty-three thousand, one hundred twenty-one".