51630894519 has 8 divisors (see below), whose sum is σ = 72464413440. Its totient is φ = 32608985976.

The previous prime is 51630894509. The next prime is 51630894587. The reversal of 51630894519 is 91549803615.

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

It is not a de Polignac number, because 51630894519 - 2¹¹ = 51630892471 is a prime.

It is a super-2 number, since 2×51630894519² (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 (51630894509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452902527 + ... + 452902640.

It is an arithmetic number, because the mean of its divisors is an integer number (9058051680).

Almost surely, 2^51630894519 is an apocalyptic number.

51630894519 is a deficient number, since it is larger than the sum of its proper divisors (20833518921).

51630894519 is a wasteful number, since it uses less digits than its factorization.

51630894519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905805189.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 51630894519 in words is "fifty-one billion, six hundred thirty million, eight hundred ninety-four thousand, five hundred nineteen".