51413018191 has 8 divisors (see below), whose sum is σ = 54660601440. Its totient is φ = 48249787872.

The previous prime is 51413018159. The next prime is 51413018197. The reversal of 51413018191 is 19181031415.

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

It is not a de Polignac number, because 51413018191 - 2⁵ = 51413018159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51413018197) 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, 21086976 + ... + 21089413.

It is an arithmetic number, because the mean of its divisors is an integer number (6832575180).

Almost surely, 2^51413018191 is an apocalyptic number.

51413018191 is a deficient number, since it is larger than the sum of its proper divisors (3247583249).

51413018191 is a wasteful number, since it uses less digits than its factorization.

51413018191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42176465.

The product of its (nonzero) digits is 4320, while the sum is 34.

The spelling of 51413018191 in words is "fifty-one billion, four hundred thirteen million, eighteen thousand, one hundred ninety-one".