651073023 has 12 divisors (see below), whose sum is σ = 949068120. Its totient is φ = 430065936.

The previous prime is 651072973. The next prime is 651073051. The reversal of 651073023 is 320370156.

It is a happy number.

651073023 is a `hidden beast` number, since 651 + 0 + 7 + 3 + 0 + 2 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-651073023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651073223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330861 + ... + 332822.

It is an arithmetic number, because the mean of its divisors is an integer number (79089010).

Almost surely, 2^651073023 is an apocalyptic number.

651073023 is a deficient number, since it is larger than the sum of its proper divisors (297995097).

651073023 is a wasteful number, since it uses less digits than its factorization.

651073023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663798 (or 663795 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 651073023 is about 25516.1326027280. The cubic root of 651073023 is about 866.7155071259.

The spelling of 651073023 in words is "six hundred fifty-one million, seventy-three thousand, twenty-three".