51253784589 has 36 divisors (see below), whose sum is σ = 78923703264. Its totient is φ = 28982566368.

The previous prime is 51253784581. The next prime is 51253784629. The reversal of 51253784589 is 98548735215.

It is not a de Polignac number, because 51253784589 - 2³ = 51253784581 is a prime.

It is a super-2 number, since 2×51253784589² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51253784581) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 131757607 + ... + 131757995.

Almost surely, 2^51253784589 is an apocalyptic number.

It is an amenable number.

51253784589 is a deficient number, since it is larger than the sum of its proper divisors (27669918675).

51253784589 is an frugal number, since it uses more digits than its factorization.

51253784589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 526 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 57.

The spelling of 51253784589 in words is "fifty-one billion, two hundred fifty-three million, seven hundred eighty-four thousand, five hundred eighty-nine".