1538552426143 has 4 divisors (see below), whose sum is σ = 1540426425048. Its totient is φ = 1536678427240.

The previous prime is 1538552426123. The next prime is 1538552426153. The reversal of 1538552426143 is 3416242558351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1538552426143 - 2¹³ = 1538552417951 is a prime.

It is a super-2 number, since 2×1538552426143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538552426123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 936998221 + ... + 936999862.

It is an arithmetic number, because the mean of its divisors is an integer number (385106606262).

Almost surely, 2^{1538552426143} is an apocalyptic number.

1538552426143 is a deficient number, since it is larger than the sum of its proper divisors (1873998905).

1538552426143 is an equidigital number, since it uses as much as digits as its factorization.

1538552426143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873998904.

The product of its digits is 3456000, while the sum is 49.

The spelling of 1538552426143 in words is "one trillion, five hundred thirty-eight billion, five hundred fifty-two million, four hundred twenty-six thousand, one hundred forty-three".