651878496 has 48 divisors (see below), whose sum is σ = 1901314800. Its totient is φ = 217292544.

The previous prime is 651878473. The next prime is 651878519. The reversal of 651878496 is 694878156.

It is an interprime number because it is at equal distance from previous prime (651878473) and next prime (651878519).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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, 376381 + ... + 378108.

It is an arithmetic number, because the mean of its divisors is an integer number (39610725).

Almost surely, 2^651878496 is an apocalyptic number.

It is an amenable number.

651878496 is an abundant number, since it is smaller than the sum of its proper divisors (1249436304).

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

651878496 is a wasteful number, since it uses less digits than its factorization.

651878496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754508 (or 754494 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 651878496 is about 25531.9113268083. The cubic root of 651878496 is about 867.0727779809.

The spelling of 651878496 in words is "six hundred fifty-one million, eight hundred seventy-eight thousand, four hundred ninety-six".