51172846498 has 4 divisors (see below), whose sum is σ = 76759269750. Its totient is φ = 25586423248.

The previous prime is 51172846493. The next prime is 51172846511. The reversal of 51172846498 is 89464827115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45734816449 + 5438030049 = 213857^2 + 73743^2 .

It is not an unprimeable number, because it can be changed into a prime (51172846493) 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 as a sum of consecutive naturals, namely, 12793211623 + ... + 12793211626.

Almost surely, 2^51172846498 is an apocalyptic number.

51172846498 is a deficient number, since it is larger than the sum of its proper divisors (25586423252).

51172846498 is a wasteful number, since it uses less digits than its factorization.

51172846498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25586423251.

The product of its digits is 3870720, while the sum is 55.

The spelling of 51172846498 in words is "fifty-one billion, one hundred seventy-two million, eight hundred forty-six thousand, four hundred ninety-eight".