651397384206 has 24 divisors (see below), whose sum is σ = 1432426091304. Its totient is φ = 213891678000.

The previous prime is 651397384181. The next prime is 651397384241. The reversal of 651397384206 is 602483793156.

651397384206 is a `hidden beast` number, since 6 + 51 + 3 + 9 + 7 + 384 + 206 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 270064045 + ... + 270066456.

It is an arithmetic number, because the mean of its divisors is an integer number (59684420471).

It is a 1-persistent number, because it is pandigital, but 2⋅651397384206 = 1302794768412 is not.

Almost surely, 2^651397384206 is an apocalyptic number.

651397384206 is an abundant number, since it is smaller than the sum of its proper divisors (781028707098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

651397384206 is a wasteful number, since it uses less digits than its factorization.

651397384206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540130576 (or 540130573 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 651397384206 in words is "six hundred fifty-one billion, three hundred ninety-seven million, three hundred eighty-four thousand, two hundred six".