51115484433 has 8 divisors (see below), whose sum is σ = 73396593088. Its totient is φ = 31455682704.

The previous prime is 51115484411. The next prime is 51115484473. The reversal of 51115484433 is 33448451115.

51115484433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51115484433 - 2²⁹ = 50578613521 is a prime.

It is a super-2 number, since 2×51115484433² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1310653447 = 51115484433 / (5 + 1 + 1 + 1 + 5 + 4 + 8 + 4 + 4 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 51115484391 and 51115484400.

It is not an unprimeable number, because it can be changed into a prime (51115484473) 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, 655326685 + ... + 655326762.

It is an arithmetic number, because the mean of its divisors is an integer number (9174574136).

Almost surely, 2^51115484433 is an apocalyptic number.

It is an amenable number.

51115484433 is a deficient number, since it is larger than the sum of its proper divisors (22281108655).

51115484433 is a wasteful number, since it uses less digits than its factorization.

51115484433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310653463.

The product of its digits is 115200, while the sum is 39.

The spelling of 51115484433 in words is "fifty-one billion, one hundred fifteen million, four hundred eighty-four thousand, four hundred thirty-three".