51037383667 has 4 divisors (see below), whose sum is σ = 51063788800. Its totient is φ = 51010978536.

The previous prime is 51037383643. The next prime is 51037383751. The reversal of 51037383667 is 76638373015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76638373015 = 5 ⋅15327674603.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51037383667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51037383667.

It is not an unprimeable number, because it can be changed into a prime (51037383367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13199667 + ... + 13203532.

It is an arithmetic number, because the mean of its divisors is an integer number (12765947200).

Almost surely, 2^51037383667 is an apocalyptic number.

51037383667 is a deficient number, since it is larger than the sum of its proper divisors (26405133).

51037383667 is a wasteful number, since it uses less digits than its factorization.

51037383667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26405132.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 51037383667 in words is "fifty-one billion, thirty-seven million, three hundred eighty-three thousand, six hundred sixty-seven".