412543678438 has 4 divisors (see below), whose sum is σ = 618815517660. Its totient is φ = 206271839218.

The previous prime is 412543678427. The next prime is 412543678453. The reversal of 412543678438 is 834876345214.

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

It is a super-2 number, since 2×412543678438² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103135919608 + ... + 103135919611.

It is an arithmetic number, because the mean of its divisors is an integer number (154703879415).

Almost surely, 2^412543678438 is an apocalyptic number.

412543678438 is a deficient number, since it is larger than the sum of its proper divisors (206271839222).

412543678438 is a wasteful number, since it uses less digits than its factorization.

412543678438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206271839221.

The product of its digits is 15482880, while the sum is 55.

The spelling of 412543678438 in words is "four hundred twelve billion, five hundred forty-three million, six hundred seventy-eight thousand, four hundred thirty-eight".