52820917918 has 8 divisors (see below), whose sum is σ = 81787227840. Its totient is φ = 25558508640.

The previous prime is 52820917913. The next prime is 52820917921. The reversal of 52820917918 is 81971902825.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52820917913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 425975083 + ... + 425975206.

It is an arithmetic number, because the mean of its divisors is an integer number (10223403480).

Almost surely, 2^52820917918 is an apocalyptic number.

52820917918 is a deficient number, since it is larger than the sum of its proper divisors (28966309922).

52820917918 is a wasteful number, since it uses less digits than its factorization.

52820917918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851950322.

The product of its (nonzero) digits is 725760, while the sum is 52.

The spelling of 52820917918 in words is "fifty-two billion, eight hundred twenty million, nine hundred seventeen thousand, nine hundred eighteen".