544551343642 has 4 divisors (see below), whose sum is σ = 816827015466. Its totient is φ = 272275671820.

The previous prime is 544551343603. The next prime is 544551343673. The reversal of 544551343642 is 246343155445.

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

It can be written as a sum of positive squares in only one way, i.e., 346660710841 + 197890632801 = 588779^2 + 444849^2 .

It is a junction number, because it is equal to n+sod(n) for n = 544551343592 and 544551343601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136137835909 + ... + 136137835912.

Almost surely, 2^544551343642 is an apocalyptic number.

544551343642 is a deficient number, since it is larger than the sum of its proper divisors (272275671824).

544551343642 is a wasteful number, since it uses less digits than its factorization.

544551343642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272275671823.

The product of its digits is 3456000, while the sum is 46.

The spelling of 544551343642 in words is "five hundred forty-four billion, five hundred fifty-one million, three hundred forty-three thousand, six hundred forty-two".