51889666952 has 12 divisors (see below), whose sum is σ = 97294333605. Its totient is φ = 25944511328.

The previous prime is 51889666931. The next prime is 51889666987. The reversal of 51889666952 is 25966698815.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

51889666952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51722585476 + 167081476 = 227426^2 + 12926^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161074.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 604028 + ... + 684564.

Almost surely, 2^51889666952 is an apocalyptic number.

It is an amenable number.

51889666952 is a deficient number, since it is larger than the sum of its proper divisors (45404666653).

51889666952 is an frugal number, since it uses more digits than its factorization.

51889666952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161080 (or 80539 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 65.

The spelling of 51889666952 in words is "fifty-one billion, eight hundred eighty-nine million, six hundred sixty-six thousand, nine hundred fifty-two".