651012474 has 64 divisors (see below), whose sum is σ = 1548368640. Its totient is φ = 178536960.

The previous prime is 651012457. The next prime is 651012487. The reversal of 651012474 is 474210156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218982 + ... + 221934.

It is an arithmetic number, because the mean of its divisors is an integer number (24193260).

Almost surely, 2^651012474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651012474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774184320).

651012474 is an abundant number, since it is smaller than the sum of its proper divisors (897356166).

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

651012474 is a wasteful number, since it uses less digits than its factorization.

651012474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 651012474 is about 25514.9460904780. The cubic root of 651012474 is about 866.6886384633.

The spelling of 651012474 in words is "six hundred fifty-one million, twelve thousand, four hundred seventy-four".