51650887771 has 8 divisors (see below), whose sum is σ = 59035530240. Its totient is φ = 44267731368.

The previous prime is 51650887753. The next prime is 51650887787. The reversal of 51650887771 is 17778805615.

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

It is a de Polignac number, because none of the positive numbers 2^k-51650887771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51650887741) 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, 296011 + ... + 436948.

It is an arithmetic number, because the mean of its divisors is an integer number (7379441280).

Almost surely, 2^51650887771 is an apocalyptic number.

51650887771 is a deficient number, since it is larger than the sum of its proper divisors (7384642469).

51650887771 is a wasteful number, since it uses less digits than its factorization.

51650887771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743033.

The product of its (nonzero) digits is 3292800, while the sum is 55.

The spelling of 51650887771 in words is "fifty-one billion, six hundred fifty million, eight hundred eighty-seven thousand, seven hundred seventy-one".