651522424623 has 32 divisors (see below), whose sum is σ = 1022517298176. Its totient is φ = 361210088448.

The previous prime is 651522424591. The next prime is 651522424639. The reversal of 651522424623 is 326424225156.

It is not a de Polignac number, because 651522424623 - 2⁵ = 651522424591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651522424523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 913411 + ... + 1461972.

It is an arithmetic number, because the mean of its divisors is an integer number (31953665568).

Almost surely, 2^651522424623 is an apocalyptic number.

651522424623 is a deficient number, since it is larger than the sum of its proper divisors (370994873553).

651522424623 is a wasteful number, since it uses less digits than its factorization.

651522424623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375783.

The product of its digits is 691200, while the sum is 42.

Adding to 651522424623 its reverse (326424225156), we get a palindrome (977946649779).

The spelling of 651522424623 in words is "six hundred fifty-one billion, five hundred twenty-two million, four hundred twenty-four thousand, six hundred twenty-three".