51102256368 has 40 divisors (see below), whose sum is σ = 135582117328. Its totient is φ = 16573704192.

The previous prime is 51102256363. The next prime is 51102256369. The reversal of 51102256368 is 86365220115.

It is a super-2 number, since 2×51102256368² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51102256363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14385121 + ... + 14388672.

Almost surely, 2^51102256368 is an apocalyptic number.

It is an amenable number.

51102256368 is an abundant number, since it is smaller than the sum of its proper divisors (84479860960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51102256368 is a wasteful number, since it uses less digits than its factorization.

51102256368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28773841 (or 28773835 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 51102256368 in words is "fifty-one billion, one hundred two million, two hundred fifty-six thousand, three hundred sixty-eight".