51251102767 has 16 divisors (see below), whose sum is σ = 55363152672. Its totient is φ = 47263390720.

The previous prime is 51251102753. The next prime is 51251102789. The reversal of 51251102767 is 76720115215.

It is a cyclic number.

It is not a de Polignac number, because 51251102767 - 2¹⁹ = 51250578479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51251103767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 648288 + ... + 723034.

It is an arithmetic number, because the mean of its divisors is an integer number (3460197042).

Almost surely, 2^51251102767 is an apocalyptic number.

51251102767 is a deficient number, since it is larger than the sum of its proper divisors (4112049905).

51251102767 is a wasteful number, since it uses less digits than its factorization.

51251102767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75578.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 51251102767 in words is "fifty-one billion, two hundred fifty-one million, one hundred two thousand, seven hundred sixty-seven".