52447620842 has 8 divisors (see below), whose sum is σ = 80797686276. Its totient is φ = 25515058752.

The previous prime is 52447620833. The next prime is 52447620877. The reversal of 52447620842 is 24802674425.

It can be written as a sum of positive squares in 2 ways, for example, as 50584058281 + 1863562561 = 224909^2 + 43169^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 52447620793 and 52447620802.

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, 354375743 + ... + 354375890.

Almost surely, 2^52447620842 is an apocalyptic number.

52447620842 is a deficient number, since it is larger than the sum of its proper divisors (28350065434).

52447620842 is a wasteful number, since it uses less digits than its factorization.

52447620842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708751672.

The product of its (nonzero) digits is 860160, while the sum is 44.

The spelling of 52447620842 in words is "fifty-two billion, four hundred forty-seven million, six hundred twenty thousand, eight hundred forty-two".