51017201672 has 32 divisors (see below), whose sum is σ = 100075288320. Its totient is φ = 24356933760.

The previous prime is 51017201659. The next prime is 51017201687. The reversal of 51017201672 is 27610271015.

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, 1639268 + ... + 1670099.

It is an arithmetic number, because the mean of its divisors is an integer number (3127352760).

Almost surely, 2^51017201672 is an apocalyptic number.

It is an amenable number.

51017201672 is a deficient number, since it is larger than the sum of its proper divisors (49058086648).

51017201672 is a wasteful number, since it uses less digits than its factorization.

51017201672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309461 (or 3309457 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 51017201672 its reverse (27610271015), we get a palindrome (78627472687).

The spelling of 51017201672 in words is "fifty-one billion, seventeen million, two hundred one thousand, six hundred seventy-two".