51968492642 has 8 divisors (see below), whose sum is σ = 85039351632. Its totient is φ = 23622042100.

The previous prime is 51968492633. The next prime is 51968492647. The reversal of 51968492642 is 24629486915.

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

It is not an unprimeable number, because it can be changed into a prime (51968492647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181102084 + ... + 1181102127.

It is an arithmetic number, because the mean of its divisors is an integer number (10629918954).

Almost surely, 2^51968492642 is an apocalyptic number.

51968492642 is a deficient number, since it is larger than the sum of its proper divisors (33070858990).

51968492642 is a wasteful number, since it uses less digits than its factorization.

51968492642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362204224.

The product of its digits is 7464960, while the sum is 56.

The spelling of 51968492642 in words is "fifty-one billion, nine hundred sixty-eight million, four hundred ninety-two thousand, six hundred forty-two".