51463533416 has 8 divisors (see below), whose sum is σ = 96494125170. Its totient is φ = 25731766704.

The previous prime is 51463533409. The next prime is 51463533449. The reversal of 51463533416 is 61433536415.

It can be written as a sum of positive squares in only one way, i.e., 44196652900 + 7266880516 = 210230^2 + 85246^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216470831 + ... + 3216470846.

Almost surely, 2^51463533416 is an apocalyptic number.

It is an amenable number.

51463533416 is a deficient number, since it is larger than the sum of its proper divisors (45030591754).

51463533416 is a wasteful number, since it uses less digits than its factorization.

51463533416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432941683 (or 6432941679 counting only the distinct ones).

The product of its digits is 388800, while the sum is 41.

The spelling of 51463533416 in words is "fifty-one billion, four hundred sixty-three million, five hundred thirty-three thousand, four hundred sixteen".