1642543144414 has 8 divisors (see below), whose sum is σ = 2471840172648. Its totient is φ = 818596420200.

The previous prime is 1642543144393. The next prime is 1642543144427. The reversal of 1642543144414 is 4144413452461.

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

It is a super-2 number, since 2×1642543144414² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337575237 + ... + 1337576464.

It is an arithmetic number, because the mean of its divisors is an integer number (308980021581).

Almost surely, 2^{1642543144414} is an apocalyptic number.

1642543144414 is a deficient number, since it is larger than the sum of its proper divisors (829297028234).

1642543144414 is a wasteful number, since it uses less digits than its factorization.

1642543144414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675152010.

The product of its digits is 737280, while the sum is 43.

Adding to 1642543144414 its reverse (4144413452461), we get a palindrome (5786956596875).

The spelling of 1642543144414 in words is "one trillion, six hundred forty-two billion, five hundred forty-three million, one hundred forty-four thousand, four hundred fourteen".