42820493801 has 4 divisors (see below), whose sum is σ = 42826696704. Its totient is φ = 42814290900.

The previous prime is 42820493789. The next prime is 42820493879. The reversal of 42820493801 is 10839402824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42820493801 - 2³⁴ = 25640624617 is a prime.

It is a super-3 number, since 3×42820493801³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42820493201) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 3091085 + ... + 3104906.

It is an arithmetic number, because the mean of its divisors is an integer number (10706674176).

Almost surely, 2^42820493801 is an apocalyptic number.

It is an amenable number.

42820493801 is a deficient number, since it is larger than the sum of its proper divisors (6202903).

42820493801 is an equidigital number, since it uses as much as digits as its factorization.

42820493801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6202902.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 42820493801 in words is "forty-two billion, eight hundred twenty million, four hundred ninety-three thousand, eight hundred one".