42847421165637 has 8 divisors (see below), whose sum is σ = 62323521695520. Its totient is φ = 25968134039760.

The previous prime is 42847421165609. The next prime is 42847421165663. The reversal of 42847421165637 is 73656112474824.

It is a happy number.

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

It is not a de Polignac number, because 42847421165637 - 2¹⁸ = 42847420903493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42847421165537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649203350962 + ... + 649203351027.

It is an arithmetic number, because the mean of its divisors is an integer number (7790440211940).

Almost surely, 2^{42847421165637} is an apocalyptic number.

It is an amenable number.

42847421165637 is a deficient number, since it is larger than the sum of its proper divisors (19476100529883).

42847421165637 is a wasteful number, since it uses less digits than its factorization.

42847421165637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298406702003.

The product of its digits is 54190080, while the sum is 60.

The spelling of 42847421165637 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred twenty-one million, one hundred sixty-five thousand, six hundred thirty-seven".