51057968061 has 8 divisors (see below), whose sum is σ = 68089489344. Its totient is φ = 34032546080.

The previous prime is 51057968041. The next prime is 51057968153. The reversal of 51057968061 is 16086975015.

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 51057968061 - 2¹⁴ = 51057951677 is a prime.

It is a super-2 number, since 2×51057968061² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51057968061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51057968021) 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, 1505256 + ... + 1538801.

It is an arithmetic number, because the mean of its divisors is an integer number (8511186168).

Almost surely, 2^51057968061 is an apocalyptic number.

It is an amenable number.

51057968061 is a deficient number, since it is larger than the sum of its proper divisors (17031521283).

51057968061 is a wasteful number, since it uses less digits than its factorization.

51057968061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049651.

The product of its (nonzero) digits is 453600, while the sum is 48.

The spelling of 51057968061 in words is "fifty-one billion, fifty-seven million, nine hundred sixty-eight thousand, sixty-one".