51383229787 has 8 divisors (see below), whose sum is σ = 54925022880. Its totient is φ = 47950415040.

The previous prime is 51383229757. The next prime is 51383229791. The reversal of 51383229787 is 78792238315.

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

It is a cyclic number.

It is not a de Polignac number, because 51383229787 - 2⁷ = 51383229659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51383229757) 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, 27243612 + ... + 27245497.

It is an arithmetic number, because the mean of its divisors is an integer number (6865627860).

Almost surely, 2^51383229787 is an apocalyptic number.

51383229787 is a deficient number, since it is larger than the sum of its proper divisors (3541793093).

51383229787 is a wasteful number, since it uses less digits than its factorization.

51383229787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54489173.

The product of its digits is 5080320, while the sum is 55.

The spelling of 51383229787 in words is "fifty-one billion, three hundred eighty-three million, two hundred twenty-nine thousand, seven hundred eighty-seven".