651980853 has 32 divisors (see below), whose sum is σ = 987033600. Its totient is φ = 425247408.

The previous prime is 651980837. The next prime is 651980867. The reversal of 651980853 is 358089156.

651980853 is a `hidden beast` number, since 6 + 519 + 80 + 8 + 53 = 666.

651980853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 651980853 - 2⁴ = 651980837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 651980799 and 651980808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651980873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238428 + ... + 241146.

It is an arithmetic number, because the mean of its divisors is an integer number (30844800).

Almost surely, 2^651980853 is an apocalyptic number.

It is an amenable number.

651980853 is a deficient number, since it is larger than the sum of its proper divisors (335052747).

651980853 is a wasteful number, since it uses less digits than its factorization.

651980853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2912 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 651980853 is about 25533.9157396589. The cubic root of 651980853 is about 867.1181577688.

The spelling of 651980853 in words is "six hundred fifty-one million, nine hundred eighty thousand, eight hundred fifty-three".