651013632 has 80 divisors (see below), whose sum is σ = 1927086480. Its totient is φ = 216999936.

The previous prime is 651013613. The next prime is 651013633. The reversal of 651013632 is 236310156.

651013632 is a `hidden beast` number, since 6 + 5 + 10 + 13 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 651013596 and 651013605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651013633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9723 + ... + 37370.

It is an arithmetic number, because the mean of its divisors is an integer number (24088581).

Almost surely, 2^651013632 is an apocalyptic number.

It is an amenable number.

651013632 is an abundant number, since it is smaller than the sum of its proper divisors (1276072848).

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

651013632 is an equidigital number, since it uses as much as digits as its factorization.

651013632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47120 (or 47098 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 651013632 is about 25514.9687830497. The cubic root of 651013632 is about 866.6891523423.

Adding to 651013632 its reverse (236310156), we get a palindrome (887323788).

The spelling of 651013632 in words is "six hundred fifty-one million, thirteen thousand, six hundred thirty-two".