51783162771 has 8 divisors (see below), whose sum is σ = 70346938320. Its totient is φ = 33870747872.

The previous prime is 51783162751. The next prime is 51783162797. The reversal of 51783162771 is 17726138715.

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 51783162771 - 2¹⁰ = 51783161747 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51783162771.

It is not an unprimeable number, because it can be changed into a prime (51783162751) 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, 162839976 + ... + 162840293.

It is an arithmetic number, because the mean of its divisors is an integer number (8793367290).

Almost surely, 2^51783162771 is an apocalyptic number.

51783162771 is a deficient number, since it is larger than the sum of its proper divisors (18563775549).

51783162771 is a wasteful number, since it uses less digits than its factorization.

51783162771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325680325.

The product of its digits is 493920, while the sum is 48.

The spelling of 51783162771 in words is "fifty-one billion, seven hundred eighty-three million, one hundred sixty-two thousand, seven hundred seventy-one".