32651386438 has 16 divisors (see below), whose sum is σ = 53478733824. Its totient is φ = 14827874760.

The previous prime is 32651386409. The next prime is 32651386441. The reversal of 32651386438 is 83468315623.

It is a super-2 number, since 2×32651386438² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32651386391 and 32651386400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658770 + ... + 706597.

It is an arithmetic number, because the mean of its divisors is an integer number (3342420864).

Almost surely, 2^32651386438 is an apocalyptic number.

32651386438 is a deficient number, since it is larger than the sum of its proper divisors (20827347386).

32651386438 is a wasteful number, since it uses less digits than its factorization.

32651386438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366467.

The product of its digits is 2488320, while the sum is 49.

The spelling of 32651386438 in words is "thirty-two billion, six hundred fifty-one million, three hundred eighty-six thousand, four hundred thirty-eight".