1545012040443 has 8 divisors (see below), whose sum is σ = 2149581969408. Its totient is φ = 985225069224.

The previous prime is 1545012040433. The next prime is 1545012040463. The reversal of 1545012040443 is 3440402105451.

It is a happy number.

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

It is not a de Polignac number, because 1545012040443 - 2²⁵ = 1544978486011 is a prime.

It is a super-2 number, since 2×1545012040443² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1545012040423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11195739355 + ... + 11195739492.

It is an arithmetic number, because the mean of its divisors is an integer number (268697746176).

Almost surely, 2^{1545012040443} is an apocalyptic number.

1545012040443 is a deficient number, since it is larger than the sum of its proper divisors (604569928965).

1545012040443 is a wasteful number, since it uses less digits than its factorization.

1545012040443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391478873.

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 1545012040443 its reverse (3440402105451), we get a palindrome (4985414145894).

The spelling of 1545012040443 in words is "one trillion, five hundred forty-five billion, twelve million, forty thousand, four hundred forty-three".