51251102763 has 8 divisors (see below), whose sum is σ = 78096918528. Its totient is φ = 29286344424.

The previous prime is 51251102753. The next prime is 51251102789. The reversal of 51251102763 is 36720115215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51251102763 - 2⁵ = 51251102731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51251102713) 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, 1220264331 + ... + 1220264372.

It is an arithmetic number, because the mean of its divisors is an integer number (9762114816).

Almost surely, 2^51251102763 is an apocalyptic number.

51251102763 is a deficient number, since it is larger than the sum of its proper divisors (26845815765).

51251102763 is a wasteful number, since it uses less digits than its factorization.

51251102763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440528713.

The product of its (nonzero) digits is 12600, while the sum is 33.

Adding to 51251102763 its reverse (36720115215), we get a palindrome (87971217978).

The spelling of 51251102763 in words is "fifty-one billion, two hundred fifty-one million, one hundred two thousand, seven hundred sixty-three".