51436028889 has 16 divisors (see below), whose sum is σ = 87087456640. Its totient is φ = 29392016400.

The previous prime is 51436028887. The next prime is 51436028927. The reversal of 51436028889 is 98882063415.

51436028889 is a `hidden beast` number, since 51 + 436 + 0 + 2 + 88 + 89 = 666.

It is not a de Polignac number, because 51436028889 - 2¹ = 51436028887 is a prime.

It is a super-4 number, since 4×51436028889⁴ (a number of 44 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51436028887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136073962 + ... + 136074339.

It is an arithmetic number, because the mean of its divisors is an integer number (5442966040).

Almost surely, 2^51436028889 is an apocalyptic number.

It is an amenable number.

51436028889 is a deficient number, since it is larger than the sum of its proper divisors (35651427751).

51436028889 is a wasteful number, since it uses less digits than its factorization.

51436028889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272148317 (or 272148311 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 51436028889 in words is "fifty-one billion, four hundred thirty-six million, twenty-eight thousand, eight hundred eighty-nine".