1545986364129 has 21 divisors (see below), whose sum is σ = 2317969533729. Its totient is φ = 1030635195300.

The previous prime is 1545986364071. The next prime is 1545986364157. The reversal of 1545986364129 is 9214636895451.

The square root of 1545986364129 is 1243377.

It is a perfect power (a square), and thus also a powerful number.

1545986364129 is a `hidden beast` number, since 1 + 5 + 4 + 598 + 6 + 36 + 4 + 1 + 2 + 9 = 666.

It is not a de Polignac number, because 1545986364129 - 2¹³ = 1545986355937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1545986364179) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 33548154 + ... + 33594204.

Almost surely, 2^{1545986364129} is an apocalyptic number.

1545986364129 is the 1243377-th square number.

1545986364129 is the 621689-th centered octagonal number.

It is an amenable number.

1545986364129 is a deficient number, since it is larger than the sum of its proper divisors (771983169600).

1545986364129 is an frugal number, since it uses more digits than its factorization.

1545986364129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92120 (or 46054 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 63.

The spelling of 1545986364129 in words is "one trillion, five hundred forty-five billion, nine hundred eighty-six million, three hundred sixty-four thousand, one hundred twenty-nine".