51543692672 has 16 divisors (see below), whose sum is σ = 102684700500. Its totient is φ = 25771846272.

The previous prime is 51543692597. The next prime is 51543692699. The reversal of 51543692672 is 27629634515.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 51543692672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201342422 + ... + 201342677.

Almost surely, 2^51543692672 is an apocalyptic number.

It is an amenable number.

51543692672 is a deficient number, since it is larger than the sum of its proper divisors (51141007828).

51543692672 is an equidigital number, since it uses as much as digits as its factorization.

51543692672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402685113 (or 402685101 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 50.

The spelling of 51543692672 in words is "fifty-one billion, five hundred forty-three million, six hundred ninety-two thousand, six hundred seventy-two".