44618153642 has 4 divisors (see below), whose sum is σ = 66927230466. Its totient is φ = 22309076820.

The previous prime is 44618153639. The next prime is 44618153669. The reversal of 44618153642 is 24635181644.

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., 34655917921 + 9962235721 = 186161^2 + 99811^2 .

It is a super-2 number, since 2×44618153642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44618153593 and 44618153602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11154538409 + ... + 11154538412.

Almost surely, 2^44618153642 is an apocalyptic number.

44618153642 is a deficient number, since it is larger than the sum of its proper divisors (22309076824).

44618153642 is a wasteful number, since it uses less digits than its factorization.

44618153642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22309076823.

The product of its digits is 552960, while the sum is 44.

The spelling of 44618153642 in words is "forty-four billion, six hundred eighteen million, one hundred fifty-three thousand, six hundred forty-two".