51120366847 has 8 divisors (see below), whose sum is σ = 56011202640. Its totient is φ = 46270119360.

The previous prime is 51120366833. The next prime is 51120366901. The reversal of 51120366847 is 74866302115.

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 51120366847 - 2¹⁵ = 51120334079 is a prime.

It is a super-2 number, since 2×51120366847² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51120366547) 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, 10144438 + ... + 10149475.

It is an arithmetic number, because the mean of its divisors is an integer number (7001400330).

Almost surely, 2^51120366847 is an apocalyptic number.

51120366847 is a deficient number, since it is larger than the sum of its proper divisors (4890835793).

51120366847 is a wasteful number, since it uses less digits than its factorization.

51120366847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20294153.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 51120366847 in words is "fifty-one billion, one hundred twenty million, three hundred sixty-six thousand, eight hundred forty-seven".