51940419265 has 8 divisors (see below), whose sum is σ = 71232575040. Its totient is φ = 35616287472.

The previous prime is 51940419257. The next prime is 51940419269. The reversal of 51940419265 is 56291404915.

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 51940419265 - 2³ = 51940419257 is a prime.

It is a super-3 number, since 3×51940419265³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (51940419269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742005955 + ... + 742006024.

It is an arithmetic number, because the mean of its divisors is an integer number (8904071880).

Almost surely, 2^51940419265 is an apocalyptic number.

It is an amenable number.

51940419265 is a deficient number, since it is larger than the sum of its proper divisors (19292155775).

51940419265 is a wasteful number, since it uses less digits than its factorization.

51940419265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484011991.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 51940419265 in words is "fifty-one billion, nine hundred forty million, four hundred nineteen thousand, two hundred sixty-five".