6920146853 has 4 divisors (see below), whose sum is σ = 6955274700. Its totient is φ = 6885019008.

The previous prime is 6920146813. The next prime is 6920146897. The reversal of 6920146853 is 3586410296.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4938294529 + 1981852324 = 70273^2 + 44518^2 .

It is a cyclic number.

It is not a de Polignac number, because 6920146853 - 2¹⁶ = 6920081317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920146813) 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, 17563628 + ... + 17564021.

It is an arithmetic number, because the mean of its divisors is an integer number (1738818675).

Almost surely, 2^6920146853 is an apocalyptic number.

It is an amenable number.

6920146853 is a deficient number, since it is larger than the sum of its proper divisors (35127847).

6920146853 is a wasteful number, since it uses less digits than its factorization.

6920146853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35127846.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 6920146853 is about 83187.4200405326. The cubic root of 6920146853 is about 1905.6293668432.

The spelling of 6920146853 in words is "six billion, nine hundred twenty million, one hundred forty-six thousand, eight hundred fifty-three".