651213004 has 48 divisors (see below), whose sum is σ = 1262854656. Its totient is φ = 291916800.

The previous prime is 651212981. The next prime is 651213047. The reversal of 651213004 is 400312156.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598549 + ... + 599635.

It is an arithmetic number, because the mean of its divisors is an integer number (26309472).

Almost surely, 2^651213004 is an apocalyptic number.

It is an amenable number.

651213004 is a deficient number, since it is larger than the sum of its proper divisors (611641652).

651213004 is a wasteful number, since it uses less digits than its factorization.

651213004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1424 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 651213004 is about 25518.8754454423. The cubic root of 651213004 is about 866.7776174194. Note that the first 3 decimals are identical.

The spelling of 651213004 in words is "six hundred fifty-one million, two hundred thirteen thousand, four".